Winahyu supriyatno, Safuan, and Musa Alkadhim Alhabshy. “CARA PENGGUNAAN APLIKASI VESSEL TRAFFIC SERVICE (VTS) GPS TRCKING KAPAL”. Jurnal Cakrawala Ilmiah, vol. 1, no. 12, Aug. 2022, pp. 3593-16, doi:10.53625/jcijurnalcakrawalailmiah.v1i12.3219.