Qohar, Abd., Susiswo Susiswo, Syaiful Hamzah Nasution, and Sapti Wahyuningsih. “Development of Android-Based Mathematics Learning Game on the Topic of Congruence and Similarity”. International Journal of Interactive Mobile Technologies (iJIM) 15, no. 09 (May 4, 2021): pp. 52–69. Accessed April 20, 2024. https://online-journals.org/index.php/i-jim/article/view/20723.