PUSPITANINGRUM, P. N.; WITANTO, Y. E-Module Teaching Materials Based on Heyzine Flipbook on the Meaning of NKRI for Grade IV Elementary School. Journal of Education Research and Evaluation, [S. l.], v. 8, n. 3, p. 423–431, 2024. DOI: 10.23887/jere.v8i3.78326. Disponível em: https://ejournal.undiksha.ac.id./index.php/JERE/article/view/78326. Acesso em: 4 apr. 2025.