[Azrael]

http://productsearch.barnesandnoble....&pos=-1&ugrp=2

Okay, they aren't PDF but the hard versions you'd have to buy. On BN they don't look too terribly expensive. The workbooks are damn amazing, though. They're really helpful. Er, but they don't seem to have the actual textbook. Let me check amazon..

http://www.amazon.com/s/ref=nb_sb_no...nese+1&x=0&y=0

There, amazon has it. Not too terribly expensive, either.