Kurnia Putri, A., Zulnuraini, Sani, N. K., Nashrullah, & Purnamasari, D. I. (2025). The Effect of Problem-Based Learning Using Geoboard on Cognitive Ability of SDN 8 Mamboro Students. Media Pendidikan Matematika, 13(2), 822–831. Retrieved from https://ojspanel.undikma.ac.id/index.php/jmpm/article/view/17822