Advanced Abacus: Theory and Practice

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

An Introductory Course in Elementary Number Theory

Analysis And Beyond: An Introduction With Examples And Exercises

Ramanujan's Lost Notebook: Part I, Part 1

Modular Relations and Parity in Number Theory

Notebooks of Srinivasa Ramanujan: Volume II, Volume 2

Finding Zero: A Mathematician's Odyssey to Uncover the Origins of Numbers

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

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

Number Theory: Structures, Examples, and Problems

Ramanujan's Place in the World of Mathematics: Essays Providing a Comparative Study

Geometry , Grades 7 - 9

Proof and the Art of Mathematics

My Search for Ramanujan: How I Learned to Count