Roeth A.O.Najoan, Dwi Andriani Pamase, Mozes Yustus Legi. Implementation of the Problem-Based Learning (PBL) Model to Improve Mathematics Learning Outcomes of Third-Grade Students . AJPM [Internet]. 2026 Jun. 30 [cited 2026 Jul. 4];4(6):1311-6. Available from: https://ejournal.45mataram.ac.id/index.php/armada/article/view/2255