KUSUMAYUNI, P. N.; AGUNG, A. A. G. E-Book with a Scientific Approach on Natural Science Lesson for Fifth Grade Students of Elementary School. Jurnal Ilmiah Sekolah Dasar, [S. l.], v. 5, n. 1, p. 177–185, 2021. DOI: 10.23887/jisd.v5i1.32048. Disponível em: https://ejournal.undiksha.ac.id/index.php/JISD/article/view/32048. Acesso em: 18 jul. 2024.