FITRIANA, E.; DJONO, D.; SUMARYATI, S. Enhancing Critical Thinking: Teacher’s Perspective on Problem-Based Learning Using Flipbook. QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama, [S. l.], v. 16, n. 1, p. 733–744, 2024. DOI: 10.37680/qalamuna.v16i1.5106. Disponível em: https://ejournal.insuriponorogo.ac.id/index.php/qalamuna/article/view/5106. Acesso em: 30 jul. 2025.