Book sources
From AoPSWiki
Below is a list of links to other sites that sell new and used books, and may also have further information about books you are looking for:
| Want to learn how to tackle those tough AMC/AIME/Olympiad counting and probability problems? Check out Art of Problem Solving's Intermediate Counting & Probability by David Patrick. |
Below is a list of links to other sites that sell new and used books, and may also have further information about books you are looking for:

