Garfes, Harry Pribadi. “Law Enforcement of Unregistered Marriage Practices in Indonesia Lawrence Meir Friedman’s Legal Effective Perspective”. Jurnal Ilmiah Kebijakan Hukum 16, no. 3 (November 30, 2022): 515–538. Diakses November 6, 2026. https://www.lawpolicyjournal.id/index.php/kebijakan/article/view/2653.