BAIDHOWI, M.; EFENDI, N. Problem Based Learning for Improving Students’ Cognitive Mastery in Science: Pembelajaran Berbasis Masalah untuk Meningkatkan Penguasaan Kognitif Siswa dalam Ilmu Pengetahuan Alam. Indonesian Journal of Education Methods Development, [S. l.], v. 20, n. 4, p. 10.21070/ijemd.v20i4.1000, 2025. DOI: 10.21070/ijemd.v20i4.1000. Disponível em: https://ijemd.umsida.ac.id/index.php/ijemd/article/view/1000. Acesso em: 14 dec. 2025.