Chou, Y. (2014). Actionable gamification: Beyond points, badges, and leaderboards (NA.). Octalysis.
Chicago-referens (17:e uppl.)Chou, YU-KAI. Actionable Gamification: Beyond Points, Badges, and Leaderboards. NA. USA: Octalysis, 2014.
MLA-referens (9:e uppl.)Chou, YU-KAI. Actionable Gamification: Beyond Points, Badges, and Leaderboards. NA. Octalysis, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.