SAP BASIS Books The Complete Guide to SAP NetWeaver PortalSAP Performance Optimization Guide: Analyzing and Tuning SAP SystemsSAP Basis Certification Questions: SAP Basis Interview Questions, Answers, and ExplanationsSAP Certified Technology Associate – System Administration with SAP NetWeaver 7.0SAP NetWeaver AS ABAP – System Administration105 SAP Basis (System Administration) Interview Questions with Answers and ExplanationsUpgrading SAP: The Comprehensive GuideSAP Administration – Practical GuideSAP Database Administration with IBM DB2Basis Administration for SAPSAP Basis Administration Handbook, NetWeaver EditionSAP HANA Administration