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 . ARMADA : Jurnal Penelitian Multidisiplin, [S. l.], v. 4, n. 6, p. 1311–1316, 2026. DOI: 10.55681/armada.v4i6.2255. Disponível em: https://ejournal.45mataram.ac.id/index.php/armada/article/view/2255. Acesso em: 4 jul. 2026.