No.	Title	Date
1	Calculus: early transcendentals
2	Fundamentals of Mathematics
3	Introductory Statistics
4	Precalculus
5	Introduction to the Modeling and Analysis of Complex Systems
6	College Algebra
7	Calculus Volume 1
8	Principles of Microeconomics
9	Principles of Economics
10	Principles of Macroeconomics
11	Business Statistics
12	Math in Society
13	APEX Calculus
14	Active Preparation for Calculus
15	BUSINESS MATH: A Step-By-Step Handbook
16	Math 021 Introductory Algebra, Third Edition
17	Discrete Mathematics: An Open Introduction
18	Chemistry: Atoms First
19	Chemistry
20	The Ordinary Differential Equations Project