SAP Enterprise Portal : Technology and Programming Dirk, Goebel,

SAP Enterprise Portal: Technology and Programming

SAP Enterprise Portal: Technology and Programming by Goebel

Introduction to ABAP/4 Programming for SAP M., Lyfareff, Robert

SAP HANA: An Introduction - Hardcover, by Silvia Penny; Frye Rob; - Very Good

The Complete Guide to SAP NetWeaver Portal by Chaitanya, Manish, Good Book

Enterprise Information Management with SAP