KRISTI, Danu; ANDRIANI, Aldina Eka. The Development of E-Books Based on Problem Based Learning to Improve Science Learning Outcomes. Jurnal Penelitian Pendidikan IPA, [S. l.], v. 9, n. SpecialIssue, p. 828–835, 2023. DOI: 10.29303/jppipa.v9iSpecialIssue.6505. Disponível em: https://jppipa.unram.ac.id/index.php/jppipa/article/view/6505. Acesso em: 11 oct. 2024.