Books to Purchase

[CleaningMan]

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I am looking to purchase some study material for the DAT Exam and i am looking for people that have used books for which i could buy these books so that i do not have to take on the full burden of the prices of some of these. The books i am looking for are the following:
A) DAT Destroyer
B) Columbia Review High Yield Biology
C) Columbia Review High Yield Chemistry
d) Columbia Review High Yield Organic Chemistry

And any suggestions on other books which would help when taking the DAT would be greatly appreciated!