GMAT Books for Sale/Donation

Hi - I am taking GMAT tomorrow and leaving Singapore next day.

I'd like to sort out GMAT books that helped me tremendously. Please sms me if you are interested @ 8133-2635


I have followings:
-The GMAT roadmap
-The Number Properties Guide
-The Critical Reasoning Guide
-The Reading Comprehension Guide
-The Sentence Correction Guide

Prefer those who wants to buy all together.

CAT is left with 4 tests. (I only used one in Sentence Correction)