Suprianto, Suprianto. “Implementation of GeoGebra-Assisted Problem-Based Learning to Optimize Understanding of the Distance Concept”. Mosharafa: Jurnal Pendidikan Matematika 14, no. 3 (July 30, 2025): 745–752. Accessed April 28, 2026. https://journal.institutpendidikan.ac.id/index.php/mosharafa/article/view/3259.