Mariam Nasution, I Made Arnawa, Ali Amran, and Edwin Musdi. “Practicality Development of Problem-Based Learning Models and Giving Reward to Algebra Linear Elementer”. International Journal on Integrated Education 4, no. 4 (April 23, 2021): 153–157. Accessed October 11, 2026. https://journals.researchparks.org/index.php/IJIE/article/view/1629.