Winahyu supriyatno, Safuan, and Musa Alkadhim Alhabshy. “CARA PENGGUNAAN APLIKASI VESSEL TRAFFIC SERVICE (VTS) GPS TRCKING KAPAL”. Jurnal Cakrawala Ilmiah 1, no. 12 (August 13, 2022): 3593–3616. Accessed July 6, 2025. https://mail.bajangjournal.com/index.php/JCI/article/view/3219.