
Reference
Browning, H. (2016). Guidelines for designing effective games as clinical interventions: Mechanics, Dynamics, Aesthetics, and Outcomes (MDAO) Framework. In Handbook of research on holistic perspectives in gamification for clinical practice (pp. 105-130). IGI Global.
Hunicke, R., LeBlanc, M., & Zubek, R. (2004, July). MDA: A formal approach to game design and game research. In Proceedings of the AAAI Workshop on Challenges in Game AI (Vol. 4, No. 1, p. 1722).

