Lingga LJ, Puspita Y. Penerapan Model Problem Based Learning Untuk Meningkatkan Hasil Belajar Matematika Materi Pecahan. JPDK [Internet]. 2022 Dec. 25 [cited 2024 Dec. 30];4(6):12841-7. Available from: https://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/10622