“Legal Vacuum in Indonesian Administrative Law: Urgency of Policy Regulation: Kekosongan Hukum dalam Hukum Administrasi Indonesia: Urgensi Peraturan Kebijakan” (2024) Indonesian Journal of Law and Economics Review, 19(1), p. 10.21070/ijler.v19i1.991. doi:10.21070/ijler.v19i1.991.