The IELTS administrator in your area will also be in a good position to suggest the book for your study. Normally, depending on the exam-taker's country, the admin is able to determine what study material should work best for you. Give them a try.
The links are as follows:
1. http://artefact.lib.ru/languages/eng_textbooks_ielts.shtml
2. http://forum.4shared.com/viewtopic.php?p=13091&sid=f8bb46ee13a4950c66c09ceece20dd4d
download all the materials...and practice...if u face any difficulty...let me know...wish u good luck..