Rizky EmaWulansari, Deno Puyada, IndraWijaya & KasmanRukun. “EFFECTIVENESS OF INSTRUCTIONAL MEDIA BASED GAME ON MATHEMATICS AT VOCATIONAL HIGH SCHOOL”. International Journal of Research Science and Management, vol. 4, no. 12, Dec. 2017, pp. 125-8, https://ijrsm.com/index.php/journal-ijrsm/article/view/503.