How Do I Study for SAT Subject Tests?

Hi,

I’m taking the Biology, Literature, and World History SAT Subject Tests. I am a Canadian student in the 11th grade and I have already taken Biology 20 and many English classes. But I have not been offered any World History classes besides Social Studies. So, I was wondering, how do I study for these subject tests? Which american text books would be most useful to me? Which review books are the best?

I would really appreciate some advice!

Thanks!

Princeton Review is great for SAT Biology.