| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| CCSP Cisco Secure PIX Firewall Advanced Exam Certification Guide | 978-1-58720-123-3 | 2004 | Christian Degu · Earl Carter |
| CCSP Cisco Secure PIX Firewall Advanced Exam Certification Guide | 978-1-58720-067-0 | 2003 | Christian Degu |
| CCSP SECUR Exam Certification Guide | 978-1-58720-072-4 | 2004 | " |
| CCSP SNPA Official Exam Certification Guide | 978-1-58720-152-3 | 2006 | Earl Carter · Christian Degu · Michael Gibbs |
| CCSP SNRS Exam Certification Guide | 978-1-58720-153-0 | 2005 | Sara Nasseh · Christian Degu |