Idris, M. I., N. E. Mohd Said, and K. H. Tan. “Game-Based Learning Platform and Its Effects on Present Tense Mastery: Evidence from an ESL Classroom”. International Journal of Learning, Teaching and Educational Research, vol. 19, no. 5, May 2020, pp. 13-26, http://www.ijlter.net/index.php/ijlter/article/view/329.