Rezki, Miftahul, Ronal Rifandi, Fridgo Tasman, Veggi Yokri, and Yerizon. “Description of Grade VII Students’Concept Understanding on Set Topic”. Rangkiang Mathematics Journal 1, no. 2 (November 16, 2022): 57–65. Accessed November 7, 2024. https://math.ppj.unp.ac.id/index.php/RMJ/article/view/9.