Aprilia, Ulfiatul Inka, Suyoto, and Dewi Kunijah. “213. Peningkatan Hasil Belajar Menggunakan Model Problem Based Learning Pada Mata Pelajaran Matematika Di Sekolah Dasar”. Prosiding Seminar Nasional Pendidikan Profesi Guru 1, no. 1 (July 3, 2023): 1907–1915. Accessed December 5, 2025. https://conference.upgris.ac.id/index.php/psnppg/article/view/4242.