suryani, nani. “Upaya Meningkatkan Kemampuan Pemecahan Masalah Matematika Melalui Penerapan Model Problembased Learning Di Kelas III Sekolah Dasar”. Journal of Innovation in Primary Education, vol. 2, no. 1, June 2023, pp. 72-77, https://www.ejournal.unma.ac.id/index.php/jipe/article/view/7612.