Nurlita PS, Kartinah, Khotijah D. 204. Penerapan Model Problem Based Learning Berbantuan Media Papan Hitung untuk Meningkatkan Kemampuan Pemecahan Masalah Matematika Kelas I di SDN 3 Jebol. psnppg [Internet]. 2023 Jul. 3 [cited 2025 Apr. 17];1(1):1826-34. Available from: https://conference.upgris.ac.id/index.php/psnppg/article/view/4268