Efektifitas Penggunaan Radar Navigasi Oleh Perwira Jaga Guna Mendukung Keselamatan Bernavigasi Kapal: Effectiveness of Navigation Radar Use by Watch Officers to Support Ship Navigation Safety. Jurnal Matemar (Manajemen dan Teknologi Maritim), [S. l.], v. 5, n. 1, 2025. DOI: 10.59225/14mkjx02. Disponível em: https://e-jurnal.amanjaya.ac.id/index.php/matemar/article/view/50.. Acesso em: 12 mar. 2026.