SAP R/3 Transaction Codes Unofficial Certification and Review Guide
2012
65 Interview Questions: Conquer Your Fear and Answer the Toughest Job Interview Questions
2011
SAP Solution Manager
2011
SAP IS-Retail Interview Questions, Answers, and Explanations
2012
SAP Basis Configuration Frequently Asked Questions
2011
Unofficial SAP WebDynpro for ABAP
2012