I have not started fully yet. But as per the information received from my friends, who have successfully aced the exam (range between 680-770), here is list of books/exam:
1) Kaplan Premier CD Course
2) Manhattan Online Exams (6 In Total cost $39, however if you buy any of their book which you can even get for $17 from Amazon, you will have access to the exam).
3)
GMAT Club Tests4) All the OG Guides
5) Powerprep Logical Reasoning Bible
6) Reading Economist regularly (The wording in GMAT passages and Economist are very similar).
7) Manhattan SC workbook (Freely Downloadable from Manhattan)
That is it, that should be good enough material for the examination.
It will take you around 3 months to finish these materials honestly.