Mubarok, M. Ali. “The Role of Grandparents in Enhancing Children’s Spiritual Intelligence: A Unique Case Study in Demak, Central Java, Indonesia”. Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini 8, no. 5 (October 9, 2024): 1033–1047. Accessed April 18, 2026. https://obsesi.or.id/index.php/obsesi/article/view/5964.