Pratama Sutiono, A., Ramadan, R., Jarukasetporn, P., Takeuchi, J., Purwarianti, A., & Iida, H. (2015). A Mathematical Model of Game Refinement and Its Applications to Sports Games. EAI Endorsed Transactions on Creative Technologies, 2(5), e1. https://doi.org/10.4108/eai.20-10-2015.150095