WIDODO, Agung et al. The Personalized System of E-Modul Instructions in Physical Education Online Learning. Retos, [S. l.], v. 56, p. 319–327, 2024. DOI: 10.47197/retos.v56.103515. Disponível em: https://revistaretos.org/index.php/retos/article/view/103515. Acesso em: 9 nov. 2026.