[dektep]

ไม่แน่ใจว่ามีใครเคยแจกไปหรือยังนะครับ
Functional Equational and how to solve them
http://www.4shared.com/file/40172000...unctional.html
Mathematical Olympiad Challenge By titu
http://www.4shared.com/file/40173102...irkhauser.html
Solving Mathematical Problem By Terence Tao
http://www.4shared.com/file/40173268..._-_Oxford.html
Mathematical Olympiad Treasure
http://www.4shared.com/file/40172216.../TREASURE.html
Elementary number theory in nine chapter
http://www.4shared.com/file/40173572...e_chapter.html