IMPROVING CRITICAL THINKING ABILITY BY USING THE PROBLEM-BASED LEARNING MODEL. Primary: Jurnal Pendidikan Guru Sekolah Dasar, [S. l.], v. 9, n. 2, p. 173–184, 2020. DOI: 10.33578/. Disponível em: https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/886. Acesso em: 14 dec. 2025.