History of the United States I: CLEP Study Guide, Part 1 (Unabridged)
2019
Introductory Sociology: CLEP Test Study Guide (Unabridged)
2024
Human Growth and Development CLEP Study Guide (Unabridged)
2024
American Government CLEP Test Study Guide 2020 Edition (Unabridged)
2025
Analyzing and Interpreting Literature CLEP Test Study Guide (Unabridged)
2024
Principles of Microeconomics CLEP Test Study Guide (Unabridged)
2024