Klemke, Roland, Alessandra Antonaci, and Bibeg Limbu. “Designing and Implementing Gamification: GaDeP, Gamifire, and Applied Case Studies”. International Journal of Serious Games 7, no. 3 (September 25, 2020): 97 - 129. Accessed November 1, 2020. http://journal.seriousgamessociety.org/index.php/IJSG/article/view/357.