A First Step to Mathematical Olympiad Problems
Derek Holton
Lecture Notes On Mathematical Olympiad Courses: For Junior Section (In 2 Volumes) - Volume 2
Jiagu Xu
Lecture Notes On Mathematical Olympiad Courses: For Junior Section (In 2 Volumes) - Volume 1
Jiagu Xu
Mathematical Olympiad In China (2009-2010): Problems And Solutions
Bin Xiong & Peng Yee Lee
Solving Problems in Geometry
Kim Hoo Hang & Haibin Wang
Methods and Techniques for Proving Inequalities
Yong Su & Bin Xiong
Geometric Inequalities
Gangsong Leng & Yongming Liu
Combinatorial Extremization
Yuefeng Feng
Probability and Expectation
Zun Shan & Shanping Wang
Sequences and Mathematical Induction
Zhigang Feng, Feng Ma & Youren Wang