Winahyu supriyatno, Safuan and Musa Alkadhim Alhabshy (2022) “CARA PENGGUNAAN APLIKASI VESSEL TRAFFIC SERVICE (VTS) GPS TRCKING KAPAL”, Jurnal Cakrawala Ilmiah, 1(12), pp. 3593–3616. doi: 10.53625/jcijurnalcakrawalailmiah.v1i12.3219.