| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| ABAP 7.4 Certification Guide | 978-1-4932-1212-5 | 2015 | David Haslam |
| ABAP 7.5 Certification Guide - The SAP-Endorsed Certification Series | 978-1-4932-1685-7 | 2018 | " |
| SAP Certified Development Associate-ABAP with SAP NetWeaver 7.02 | 978-1-59229-435-0 | 2012 | " |
| SAP Certified Development Associate -- ABAP with SAP NetWeaver | 978-1-59229-270-7 | 2009 | " |