REDIYONO. Implementation of Problem Based Learning to Improve Students Motivation. Jurnal Penelitian Pendidikan IPA, [S. l.], v. 11, n. 1, p. 1099–1105, 2025. DOI: 10.29303/jppipa.v11i1.10049. Disponível em: https://jppipa.unram.ac.id/index.php/jppipa/article/view/10049. Acesso em: 25 jul. 2025.