FRISNOIRY, S.; SIREGAR, T. M.; MANURUNG, S. L. Mathematics Book Innovation Based on Digital Literature. Journal of Education, Health and Sport, [S. l.], v. 12, n. 9, p. 288–296, 2022. DOI: 10.12775/JEHS.2022.12.09.033. Disponível em: https://apcz.umk.pl/JEHS/article/view/39447. Acesso em: 23 nov. 2024.