Elementary Number Theory: Primes, Congruences, and Secrets: A Computational Approach

Complex Numbers from A to ... Z: Edition 2

Fundamentals of Number Theory

104 Number Theory Problems: From the Training of the USA IMO Team

Elementary Number Theory

An Introduction to Diophantine Equations: A Problem-Based Approach

Introductory Complex Analysis

Essential Linear Algebra with Applications: A Problem-Solving Approach

An Introductory Course in Elementary Number Theory

Advanced Algebra

Mathematical Olympiad Treasures: Edition 2

Mathematical Olympiad Challenges

Mathematics: Its Content, Methods and Meaning

102 Combinatorial Problems: From the Training of the USA IMO Team

A Beginner's Guide to Constructing the Universe: The Mathematical Archetypes of Nature, Art, and Science

103 Trigonometry Problems: From the Training of the USA IMO Team

Mathematician's Delight

How Numbers Work: Discover the strange and beautiful world of mathematics

Geometric Problems on Maxima and Minima