ARDIKA, G. .; SUKMANA, A. I. W. I. Y. .; SUDARMA, I. K. . Problem-Based Learning E-Book for Natural and Social Sciences in Fourth-Grade of Elementary Schools. Jurnal Pedagogi dan Pembelajaran, [S. l.], v. 7, n. 3, 2024. DOI: 10.23887/jp2.v7i3.82690. Disponível em: https://ejournal.undiksha.ac.id/index.php/JP2/article/view/82690. Acesso em: 15 jan. 2025.