Penerapan Model Problem Based Learning (PBL) Untuk Meningkatkan Hasil Belajar Matematika . semnasppg [Internet]. 2023 Dec. 30 [cited 2026 Aug. 12];4:62-6. Available from: https://jurnal.fkip.unmul.ac.id/index.php/semnasppg/article/view/3052