Aktivitas Pelayanan Bongkar Muat Batu Bara di Pelabuhan Tanjung Tembaga PT. Delta Artha Bahari Nusantara Probolinggo: Coal Loading and Unloading Service Activities at Tanjung Tembaga Port PT. Delta Artha Bahari Nusantara Probolinggo. Jurnal Matemar (Manajemen dan Teknologi Maritim), [S. l.], v. 5, n. 2, 2025. DOI: 10.59225/1gg0jv35. Disponível em: https://e-jurnal.amanjaya.ac.id/index.php/matemar/article/view/40.. Acesso em: 13 oct. 2025.