Rifai, Anis, and Prosper Maguchu. “Judicial Review of the Obligation to Have an Approval Letter for Sailing in the Crime of Sailing in Indonesia”. Unifikasi: Jurnal Ilmu Hukum, vol. 11, no. 01, June 2024, pp. 21-28, doi:10.25134/unifikasi.v11i01.760.