Penerapan Model Problem Based Learning Pada Hasil Belajar Matematika Peserta Didik Kelas VIII SMPN 18  Padang. JEPM [Internet]. 2026 Apr. 9 [cited 2026 Oct. 6];15(1):8-13. Available from: https://jepm.ppj.unp.ac.id/index.php/jepm/article/view/163