Punia IW. Peningkatan Hasil Belajar Matematika melalui Penerapan Model Pembelajaran Problem Based Learning (PBL). JEAR [Internet]. 2020 Jul. 22 [cited 2024 Apr. 28];4(3):354-62. Available from: https://ejournal.undiksha.ac.id/index.php/JEAR/article/view/27240