Widyasari A, Azainil A, Rusdiana R. Peningkatan Hasil Belajar Matematika Siswa Melalui Model Pembelajaran Problem Based Learning. psnpm [Internet]. 2024Aug.17 [cited 2025Dec.5];4:17-23. Available from: https://jurnal.fkip.unmul.ac.id/index.php/psnpm/article/view/4042