The Textbooks that SUM uses are available from a variety of sources; here are the ones we have researched and/or participate in:
Amazon – Kindle copies and hard copies of books that may be cheaper than the online bookstore. Amazon and other sources may offer used book options at lower prices or the possibility of renting a textbook.
Scribd – $9.99 monthly subscription to thousands of books: Scribd.com
38% of our undergrad and 29% of our graduate books are available on Scribd