Kustiwansa, Harlian, Syamsul Asri, and Misliah Idrus. “Distance’s Effects on Ferry Ship’s Operating Costs”. Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan 4, no. 1 (March 28, 2023): 1–13. Accessed June 21, 2026. https://journal-598.unhas.ac.id/index.php/zonalaut/article/view/25951.