Pengaruh Model Problem Based Learning Terhadap Hasil Belajar Matematika Kelas V Sekolah Dasar . JGK [Internet]. 2025 Jun. 30 [cited 2026 Mar. 20];9(3):906-1. Available from: https://jurnal.unimed.ac.id/2012/index.php/jgkp/article/view/64582