MUALIM, R.; SAPUTRA, M. F. Optimizing Online Learning during Covid 19 Pandemic in Junior High School. Journal of Islamic Education Students (JIES), [S. l.], v. 1, n. 1, p. 19–27, 2021. DOI: 10.31958/jies.v1i1.3193. Disponível em: https://ejournal.uinmybatusangkar.ac.id/ojs/index.php/jies/article/view/3193. Acesso em: 20 jan. 2026.