100 Math Brainteasers Arithmetic Grade 7 to 10 Algebra and Geometry Brain Teasers Puzzles Games and Problems Mathematics Books
The Essence of Mathematics Through Elementary Problems author Alexandre Borovik Tony Gardiner Mathematics Books
100 Math Brainteasers Arithmetic Algebra and Geometry Brain Teasers Puzzles Games and Problems Algebra Books PDF Mathematics Books
Solving Problems in Geometry Insights and Strategies for Mathematical Olympiad and Competitions by Kim Hoo Hang and Haibin Wang Geometry