Hasibuan, Lulu, and Aulia Nugraha. “Development of Scientific and Constructivism-Based Handouts on Social Arithmetic Materials”. Indonesian Journal of Education Research (IJoER) 4, no. 2 (April 30, 2023): 28-31. Accessed November 24, 2024. https://cahaya-ic.com/index.php/IJoER/article/view/578.