KARTINI, K.; EFENDI, E. . Optimizing the Utilization of Package Books during the Covid-19 Pandemic: (Strategy of Islamic Religious Education Teachers in Junior High Schools). Jurnal Konsepsi, [S. l.], v. 13, n. 1, p. 28–35, 2024. Disponível em: https://p3i.my.id/index.php/konsepsi/article/view/342. Acesso em: 19 apr. 2026.