CHOU, CHIH-YUEH, and SHAO-PIN LU. “EVENLY MATCHED COMPETITIVE STRATEGIES: DYNAMIC DIFFICULTY ADAPTATION IN A GAME-BASED LEARNING SYSTEM”. Research and Practice in Technology Enhanced Learning 8, no. 2 (August 22, 2022): 225–243. Accessed May 19, 2024. https://rptel.apsce.net/index.php/RPTEL/article/view/2013-08015.