I have mentioned some of Datawarehouse and SAP BO books and e-books for your reference.

E-Books

• SAP Business Objects Business Intelligence platform 4.1 document PDF

• SAP Business Objects Enterprise XI 3.1 Service Pack 6 Document PDF

BOOKS – Online link to buy

• The Data Warehouse Toolkit: The Definitive Guide to Dimensional Modeling by Ralph Kimball and Margy Ross

• SAP BusinessObjects BI 4.0 The Complete Reference 3/E by Cindi Howson and Elizabeth Newbould

• Creating Documents with Business Objects: Web Intelligence 11, Vol. 4 by Robert D. Schmidt

• SAP BusinessObjects Web Intelligence: The Comprehensive Guide by Jim Brogden, Heather Sinkwitz, Mac Holden and Dallas Marks

• SAP BI (IDT) Information Design Tool 4: Creating Business Objects Universes by Robert Douglas Schmidt

• SAP Business Objects Interview Questions: Business Objects in SAP Analytics Certification Review by Terry Sanchez-Clark and Brooke Winger

• SAP BusinessObjects BI System Administration by Greg Myers and Eric Vallo

• Cloud Computing: Concepts, Technology & Architecture (The Prentice Hall Service Technology Series from Thomas… by Thomas Erl, Ricardo Puttini and Zaigham Mahmood

• Cloud Computing Explained: Implementation Handbook for Enterprises by John Rhoton