NOPITA SARI GULTOM. DEVELOPMENT OF PROBLEM BASED LEARNING MODEL TO IMPROVE STUDENTS’ PROBLEM SOLVING ABILITIES. Jurnal Profesionalisme Guru, [S. l.], v. 2, n. 1, p. 32–40, 2025. Disponível em: https://journal.maalahliyah.sch.id/index.php/jpg/article/view/437. Acesso em: 12 mar. 2026.