SONIA SIREGAR. IMPLEMENTATION OF PROBLEM-BASED LEARNING IN IMPROVING STUDENTS’ CRITICAL THINKING ABILITIES. Jurnal Profesionalisme Guru, [S. l.], v. 2, n. 1, p. 152–160, 2025. Disponível em: https://journal.maalahliyah.sch.id/index.php/jpg/article/view/461. Acesso em: 28 sep. 2025.