Only the current version so far — new entries appear as the app ships updates.
Principles of Microeconomics is an education app by QuizOver.com with 50,000+ downloads (about 57K estimated). +1 installs in the last 7 days. Rated 4.2 from 107 ratings. Released May 20, 2017. Install growth, rank history, SDKs and ad networks.
From the store listing: “Principles of Microeconomics Textbook & MCQ & Key Terms by OpenStax”