HIDAYAT SHIDDIQ, I.; RASYID RIDHO, M.; ANDI NOVA; LUBIS, P.; NURLIANI; NAZWA, S. The Relevance of Moral Development and Moral Education in Children (Kholbergh and Hamka Study). AL-MURABBI: Jurnal Studi Kependidikan dan Keislaman, v. 13, n. 1, p. 45-62, 1 Aug. 2026.