Garfes, Harry Pribadi. “Law Enforcement of Unregistered Marriage Practices in Indonesia Lawrence Meir Friedman’s Legal Effective Perspective”. Jurnal Ilmiah Kebijakan Hukum, vol. 16, no. 3, Nov. 2022, pp. 515-38, https://doi.org/10.30641/kebijakan.2022.V16.515-538.