Ramanujan's Theta Functions

Ramanujan's Lost Notebook: Part I, Part 1

Ramanujan’s Notebooks: Part II, Part 2

Chapter 9 of Ramanujan's Second Notebook: Infinite Series Identities, Transformations, and Evaluations: Infinite Series Identities, Transformations, and Evaluations, Part 9

The Mathematical Legacy of Srinivasa Ramanujan

My Search for Ramanujan: How I Learned to Count

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

Number Theory: Structures, Examples, and Problems

Calculus For Dummies: Edition 2

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

Calculus Made Easy: Being a Very-Simplest Introduction to Those Beautiful Methods of Reckoning Which are Generally Called by the Terrifying Names of the Differential Calculus and the Integral Calculus

Mathematician's Delight

The Joy Of X: A Guided Tour of Math, from One to Infinity

Calculus Workbook For Dummies with Online Practice: Edition 3

What Is Mathematics?: An Elementary Approach to Ideas and Methods, Edition 2

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

Humble Pi: A Comedy of Maths Errors