Moral Decadence Among Students: A Social Analysis of Changes in Values and Norms at Muhammadiyah 06 Medan Middle School. Indonesian Journal of Education Research (IJoER), [S. l.], v. 6, n. 5, p. 513–521, 2025. DOI: 10.37251/ijoer.v6i5.2159. Disponível em: https://cahaya-ic.com/index.php/IJoER/article/view/2159. Acesso em: 25 may. 2026.