virginiawan, virginiawan, and S. Sitohang. “GAME EDUKASI PEMBELAJARAN MATEMATIKA PERSAMAAN LINIER BERBASIS ANDROID”. Computer and Science Industrial Engineering (COMASIE), vol. 3, no. 1, July 2020, pp. 19-30, https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/2088.