LUTFIANI, Firda Dian; ANDRIANI, Aldina Eka. Development of Interactive E-Books Based on Problem-Based Learning on the Material of the Earth’s Surface Layers. Jurnal Pijar Mipa, [S. l.], v. 20, n. 1, p. 52–58, 2025. DOI: 10.29303/jpm.v20i1.8196. Disponível em: http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/8196. Acesso em: 29 jan. 2025.