Buy Books

I am going to buy my books really soon but some of the books I want to buy is about the theory of 9-11. But at the same time I don't want to over hit my budget of RM1K. Yeah I know that I am buying about 6 books and it will cost me about USD 230+ and with shipping is another about 30+? Never mind I will think about it then will come out the list of books that I will be buying really soon