1. BIPMIN: A Gamified Framework for Process Modeling Education
2. Y.K. Chou . 2015 . Actionable Gamification: Beyond Points, Badges, and Leaderboards . Createspace Independent Publishing Platform . https://books.google.it/books? id=jFWQrgEACAAJ Y.K. Chou. 2015. Actionable Gamification: Beyond Points, Badges, and Leaderboards. Createspace Independent Publishing Platform. https://books.google.it/books? id=jFWQrgEACAAJ