Demidiuk, Krystian, and Małgorzata Plechawska-Wójcik. “Analysis of the Impact of Various Gamification Factors on the Level of Player Satisfaction”. Journal of Computer Sciences Institute 22 (March 30, 2022): 1–7. Accessed May 7, 2024. https://ph.pollub.pl/index.php/jcsi/article/view/2770.