Hasian Romadon Tanjung, Harris Effendi Thahar, and Abdurahman. “Development Of Teaching Materials For Indonesian Language Courses Based On National Character Using A Cooperative Learning Model”. Educational Administration: Theory and Practice 30, no. 1 (January 17, 2024): 404–412. Accessed June 1, 2024. https://kuey.net/index.php/kuey/article/view/2095.