SYAMSUDDIN, Syamsuddin. Essence of Moral Education: Luqman Speaks, the Students Remain Silent?. ETDC: Indonesian Journal of Research and Educational Review , [S. l.], v. 4, n. 4, p. 1791–1805, 2025. DOI: 10.51574/ijrer.v4i4.4078. Disponível em: https://etdci.org/journal/ijrer/article/view/4078. Acesso em: 12 jan. 2026.