| title | ISBN-13 | year of publica-
tion | other author(s) |
|---|
| Bundle: CompTIA Security+ Guide to Network Security Fundamentals, 5th + CertBlaster Printed Access Card + LMS Integrated for MindTap Computing, 1 term Printed Access Card | 978-1-337-20185-8 | 2015 |
| Bundle: CompTIA Security+ Guide to Network Security Fundamentals, 5th + CertBlaster Printed Access Card + MindTap Computing, 1 terms Instant Access | 978-1-337-20449-1 | 2016 |
| Bundle: CompTIA Security+ Guide to Network Security Fundamentals, 5th + Web-Based Labs, 2 terms Access Code | 978-1-305-42308-4 | 2014 |
| Bundle: CompTIA Security+ Guide to Network Security Fundamentals, 6th + MindTap Information Security, 2 terms Printed Access Card | 978-0-357-24697-9 | 2018 |
| Bundle: CompTIA Security+ Guide to Network Security Fundamentals, Loose-Leaf Version, 6th + MindTap Information Security, 2 terms Printed Access Card | 978-0-357-24699-3 | 2018 |
| Bundle: Digital Literacy and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version + MindTap, 1 term Printed Access Card | 978-0-357-26006-7 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: LMS Integrated for MindTap Computing, 1 term Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security ... Guide to Network Security Fundamentals, 5th | 978-1-337-38024-9 | 2016 |
| Bundle: Security Awareness: Applying Practical Security in Your World, 5th + LMS Integrated for MindTap Information Security, 1 term Printed Access Card | 978-1-337-19200-2 | 2016 |
| Bundle: Security Awareness: Applying Practical Security in Your World, 5th + MindTap Information Security, 1 term Printed Access Card | 978-1-337-19204-0 | 2016 |
| Bundle: Security Awareness: Applying Practical Security in Your World, 5th + Network+ Guide to Networks, 7th + LMS Integrated for MindTap Computing, 1 ... West/Andrews' Network+ Guide to Networks, 7th | 978-1-337-57563-8 | 2016 |
| Bundle: Security Awareness: Applying Practical Security in Your World, 5th + SAM 365 & 2016 Assessments, Trainings, and Projects Printed Access Card with Access to 1 MindTap Reader for 6 months | 978-1-337-38011-9 | 2016 |
| Bundle: Security Awareness: Applying Practical Security in Your World, 5th + Shelly Cashman Series Microsoft Office 365 & Office 2016: Introductory, ... Trainings, and Projects with 2 MindTap Re | 978-0-357-26175-0 | 2016 |
| Bundle: Security+ Guide to Network Security Fundamentals, 4th + LabConnection Online Printed Access Card | 978-1-133-30140-0 | 2011 |
| Bundle: Security+ Guide to Network Security Fundamentals, 4th + Lab Manual | 978-1-133-26172-8 | 2011 |
| Bundle: Security+ Guide to Network Security Fundamentals, 4th + Web-Based Labs Printed Access Card | 978-1-133-26835-2 | 2011 |
| Bundle: Security+ Guide to Network Security Fundamentals + Security+ CourseMate with eBook Printed Access Card | 978-1-133-21917-0 | 2011 |
| Bundle: Shelly Cashman Series Microsoft Office 365 & Office 2019 Introductory, Loose-leaf Version + Technology for Success: Computer Concepts, ... Microsoft Office 365 & Office 2019, 1 te | 978-0-357-47521-8 | 2019 | Sandra Cable · Ellen Monk · Steven M. Freund · Joy L. Starks |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, 1st + MindTap, 1 term Printed Access Card | 978-0-357-26042-5 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, 1st + MindTap, 2 terms Printed Access Card | 978-0-357-26044-9 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019 + LMS Integrated SAM 365 & 2019 Assessments, Training and Projects 1 term Printed Access Card | 978-0-357-26896-4 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019 + LMS Integrated SAM 365 & 2019 Assessments, Training and Projects, 2 terms Printed Access Card | 978-0-357-39954-5 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, Loose-leaf Version, 1st + MindTap, 1 term Printed Access Card | 978-0-357-26046-3 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, Loose-leaf Version, 1st + MindTap, 2 terms Printed Access Card | 978-0-357-26048-7 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, Loose-leaf Version + LMS Integrated SAM 365 & 2019 ... and Projects 1 term Printed Access Card | 978-0-357-26897-1 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, Loose-leaf Version + LMS Integrated SAM 365 & 2019 ... and Projects, 2 terms Printed Access Card | 978-0-357-39955-2 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, Loose-leaf Version + SAM 365 & 2019 Assessments, Training, ... Access Card with Access to eBook, 2 terms | 978-0-357-27073-8 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019, Loose-leaf Version + SAM 365 & 2019 Assessments, Training, ... Access Card with Access to eBook for 1 term | 978-0-357-26793-6 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019 + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook, 2 terms | 978-0-357-27072-1 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019 + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook for 1 term | 978-0-357-26792-9 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 + LMS Integrated SAM 365 & 2019 Assessments, Training, and Projects 1 term Printed Access Card | 978-0-357-39725-1 | 2019 | Sandra Cable · Mary Z. Last · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 + LMS Integrated SAM 365 & 2019 Assessments, Training and Projects, 2 terms Printed Access Card | 978-0-357-39982-8 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version | 978-0-357-46471-7 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version + LMS Integrated SAM 365 & 2019 ... and Projects 1 term Printed Access Card | 978-0-357-26926-8 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version + LMS Integrated SAM 365 & 2019 ... and Projects, 2 terms Printed Access Card | 978-0-357-39983-5 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version + MindTap, 2 terms Printed Access Card | 978-0-357-26032-6 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version + SAM 365 & 2019 Assessments, ... Access Card with Access to eBook, 2 terms | 978-0-357-27103-2 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version + SAM 365 & 2019 Assessments, ... Access Card with Access to eBook for 1 term | 978-0-357-26818-6 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 + MindTap, 1 term Printed Access Card | 978-0-357-26005-0 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 + MindTap, 2 terms Printed Access Card | 978-0-357-26031-9 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 + MindTap for Carey/Pinard/Shaffer/Shellman/Vodnik's The ... 365 & Office 2019, 1 term Printed Access Card | 978-0-357-47734-2 | 2019 | Patrick Carey · Katherine T. Pinard · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook, 2 terms | 978-0-357-27102-5 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook for 1 term | 978-0-357-26817-9 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Bundle: Technology for Success: Computer Concepts, 1st + MindTap, 1 term Printed Access Card | 978-0-357-26352-5 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, 1st + MindTap, 2 terms Printed Access Card | 978-0-357-26354-9 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts + LMS Integrated SAM 365 & 2019 Assessments, Training and Projects 1 term Printed Access Card | 978-0-357-26945-9 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts + LMS Integrated SAM 365 & 2019 Assessments, Training and Projects, 2 terms Printed Access Card | 978-0-357-40001-2 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version, 1st + MindTap, 1 term Printed Access Card | 978-0-357-26356-3 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version, 1st + MindTap, 2 terms Printed Access Card | 978-0-357-26358-7 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version + LMS Integrated SAM 365 & 2019 Assessments, Training and Projects 1 term Printed Access Card | 978-0-357-26946-6 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version + LMS Integrated SAM 365 & 2019 Assessments, Training and Projects, 2 terms Printed Access Card | 978-0-357-40002-9 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version + MindTap for The Shelly Cashman Series Collection, Microsoft Office 365 & Office 2019, 1 term Printed Access Card | 978-0-357-47684-0 | 2019 | Jennifer T. Campbell · Ellen Monk · Susan L. Sebok · Joy L. Starks |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version + New Perspectives Microsoft Office 365 & Office 2019 Intermediate, Loose-leaf ... Comprehensive, Loose-leaf Version + New Per | 978-0-357-49740-1 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook, 2 terms | 978-0-357-27120-9 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook for 1 term | 978-0-357-26836-0 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts, Loose-leaf Version + Shelly Cashman Series Microsoft Office 365 & Office 2019 Introductory, ... Printed Access Card with Access to eBook | 978-0-357-49739-5 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts + New Perspectives Microsoft Office 365 & Office 2019 Introductory, Loose-leaf Version + LMS ... and Projects, 1 term Printed Access Card | 978-0-357-47683-3 | 2019 | SAM · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook, 2 terms | 978-0-357-27119-3 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Bundle: Technology for Success: Computer Concepts + SAM 365 & 2019 Assessments, Training, and Projects Printed Access Card with Access to eBook for 1 term | 978-0-357-26835-3 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Cengage Learning eBook Printed Access Card for Ciampa’s Security Awareness: Applying Practical Security in Your World, 3rd | 978-1-111-31287-9 | 2010 |
| Certblaster Exam Prep Software for Ciampa's Security + Guide to Network Security Fundamentals | 978-1-111-32283-0 | 2008 |
| CME CWNA GUIDE TO WIRELESS LAN W/ MindLink for CourseMate Printed Access Card | 978-1-305-62253-1 | 2013 |
| CompTIA Security+ 2008 In Depth | 978-1-59863-813-4 | 2008 |
| CompTIA Security+ Guide to Network Security Fundamentals | 978-1-305-09391-1 | 2014 |
| CompTIA Security+ Guide to Network Security Fundamentals, Loose-Leaf Version | 978-1-337-68558-0 | 2017 |
| CompTIA Security+ Guide to Network Security Fundamentals, Loose-Leaf Version | 978-1-337-68585-6 | 2017 |
| CompTIA Security+ Guide to Network Security Fundamentals - Standalone Book | 978-1-337-28878-1 | 2017 |
| CompTIA Security+ SY0-401 In Depth | 978-1-305-40272-0 | 2014 |
| Computer Technology 1 Cisc 100 - Northampton County Community College | 978-1-305-01032-1 | 2014 | Patrick Carey · Charles W. Herbert |
| CourseMate Printed Access Card for Ciampa's CWNA Guide to Wireless LANs, 3rd | 978-1-133-13222-6 | 2013 |
| CoursMate Printed Access Card for Ciampa's Security Awareness: Applying Practical Security in Your World, 4th | 978-1-111-64421-5 | 2013 |
| CWNA Guide to Wireless LANs | 978-1-133-13217-2 | 2012 |
| CWNA Guide to Wireless LANs Second Edition | 978-0-619-21579-8 | 2005 |
| CWSP Guide to Wireless Security | 978-1-4188-3637-5 | 2006 |
| Guide to Designing and Implementing Wireless LANs | 978-0-619-03494-8 | 2001 |
| Guide to Wireless Communications | 978-0-619-12000-9 | 2002 |
| In Store eBook Printed Access Card for Ciampa's Security+ Guide to Network Security Fundamentals, 4th | 978-1-285-05028-7 | 2012 |
| Introduction to Healthcare Information Technology | 978-1-133-78777-8 | 2012 | Mark Revels |
| LabConnection on DVD for Security+ Guide to Network Security Fundamentals | 978-1-111-64029-3 | 2013 |
| Lab Manual for Ciampa's CWNA Guide to Wireless LANs, 3rd | 978-1-133-13224-0 | 2015 |
| Lab Manual for for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals, 6th | 978-1-337-28879-8 | 2017 | Andrew Hurd |
| Lab Manual for Security+ Guide to Network Security Fundamentals, 5th | 978-1-305-09525-0 | 2015 |
| LMS Integrated for MindTap Computing, 1 term Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals, 5th | 978-1-337-10053-3 | 2016 |
| LMS Integrated for MindTap Computing, 2 terms Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals, 5th | 978-1-305-65771-7 | 2015 |
| LMS Integrated for MindTap Information Security, 1 term Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals, 6th | 978-1-337-28933-7 | 2017 |
| LMS Integrated for MindTap Introduction to Security, 1 term Printed Access Card for Ciampa's Security Awareness: Applying Practical Security in Your World, 5th | 978-1-305-94671-2 | 2016 |
| Microsoft FrontPage 98 | 978-0-538-68601-3 | 1998 |
| Microsoft FrontPage 2000 | 978-0-538-69092-8 | 1999 |
| Microsoft Photodraw 2000 | 978-0-538-72428-9 | 2000 |
| MindTap Computing, 1 terms Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals | 978-1-337-10051-9 | 2016 |
| MindTap Computing, 2 term Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals, 5th | 978-1-305-65768-7 | 2015 |
| MindTap for Campbell/Ciampa/Clemens/Freund/Frydenberg/Hooper/Ruffolo's Technology for Success: Computer Concepts, 1 term Printed Access Card | 978-0-357-12489-5 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| MindTap Information Security, 1 term Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals | 978-1-337-28931-3 | 2017 |
| MindTap Information Security, 1 term Printed Access Card for Ciampa's Security Awareness: Applying Practical Security in Your World, 5th | 978-1-305-94669-9 | 2016 |
| MindTap Information Security, 2 terms Printed Access Card for Ciampa's CompTIA Security+ Guide to Network Security Fundamentals | 978-0-357-13696-6 | 2018 |
| Networking Basics : | 978-0-538-69410-0 | 2000 | Mark D. Ciampa |
| Networking BASICS: Activities Workbook | 978-0-538-69043-0 | 1999 |
| Networking BASICS, Second Edition | 978-0-619-05582-0 | 2003 |
| Security Awareness: Applying Practical Security in Your World | 978-1-111-64418-5 | 2013 |
| Security Awareness: Applying Practical Security in Your World | 978-1-4354-5414-9 | 2009 |
| Security Awareness: Applying Practical Security in Your World | 978-1-4188-0969-0 | 2006 |
| Security Awareness: Applying Practical Security in Your World | 978-0-619-21312-1 | 2004 |
| Security+ Coursenotes for Ciampa's Security+ Guide to Network Security Fundamentals, 4th | 978-1-111-64034-7 | 2011 |
| Security+ Guide to Networking Security Fundamentals | 978-0-619-21566-8 | 2004 |
| Security+ Guide to Network Security Fundamentals | 978-1-111-64012-5 | 2011 |
| Security+ Guide to Network Security Fundamentals | 978-1-111-32162-8 | 2008 |
| Security+ Guide to Network Security Fundamentals | 978-1-4283-4066-4 | 2008 |
| Security+ Guide to Network Security Fundamentals Package | 978-1-133-80370-6 | 2012 |
| Security+ Guide to Network Security Fundamentals + Web-Based Labs for Security+ Printed Access Card Pkg | 978-1-133-26898-7 | 2011 |
| Security+, Update for Guide to Network Security Fundamentals | 978-1-4283-6085-3 | 2007 |
| Technology for Success and Illustrated Series Microsoft Office 365 & Office 2019 | 978-0-357-02568-0 | 2019 | David W. Beskeen · Jennifer T. Campbell · Barbara Clemens · Carol M. Cram |
| Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019 | 978-0-357-02638-0 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Technology for Success and Shelly Cashman Series Microsoft Office 365 & Office 2019, Loose-leaf Version | 978-0-357-11946-4 | 2019 | Sandra Cable · Jennifer T. Campbell · Barbara Clemens · Steven M. Freund |
| Technology for Success: Computer Concepts | 978-0-357-12482-6 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Technology for Success: Computer Concepts, Loose-leaf Version | 978-0-357-12483-3 | 2019 | Jennifer T. Campbell · Barbara Clemens · Steven M. Freund · Mark Frydenberg |
| Virtualization Labs for Ciampa's Security+ Guide to Network Security Fundamentals | 978-1-4354-4759-2 | 2009 |
| WebTutorTM Advantage on Blackboard Printed Access Card for Ciampa's Security+ Guide to Network Security Fundamentals, 4th | 978-1-111-64035-4 | 2011 |
| Wireless# Guide to Wireless Communications | 978-1-4188-3699-3 | 2006 | Jorge Olenewa |