ICWAI stage-II dec'07

Hi All:

I will be writing ICWAI stage-II in Dec’07, I need your help in suggesting reference books for Management accounting-Performance management subject. Currently I am following ICWA institute material, I believe that it is not sufficient from exam point view, correct me if I am wrong. Can any one suggest the appropriate book for this subject?

Also please comment if Ravi M Kishore (Cost Management) is right book for ICWAI stage-II?

Thanks in advance for your help.

Rgds

Srinivas