FIRDAUS, F. M.; ASTUTI, A. D. Y. .; RAHMANDA, A. H. . The Effect of Flip PDF Corporate E-Module on Mathematical Concept Understanding of Sixth Grade Elementary School Students. Jurnal Pendidikan dan Pengajaran, [S. l.], v. 56, n. 3, p. 481–490, 2023. DOI: 10.23887/jpp.v56i3.61680. Disponível em: https://ejournal.undiksha.ac.id/index.php/JPP/article/view/61680. Acesso em: 11 may. 2024.