The Effect of the Problem-Based Learning Model on Students’ Critical Thinking Skills. Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika, [S. l.], v. 10, n. 1, 2025. DOI: 10.26486/f0j86b31. Disponível em: https://ejurnal.mercubuana-yogya.ac.id/index.php/mercumatika/article/view/4617. Acesso em: 30 jun. 2026.