Ni Made Wiyasmei Gyanthi, I Gusti Ayu Tri Agustiana, and Dewe Gede Firstia. “LAPS-HEURISTIC Learning Model Improves Mathematical Problem-Solving Ability”. International Journal of Elementary Education 7, no. 1 (February 16, 2023): 169–177. Accessed July 17, 2024. https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/58407.