Dormawaty, Roma, Ganda Toras Siregar, and Nur Patria. “Effect of Manual System in Handling Documents Clearance in and Out Ship Service, Loading and Unloading Ship Agency by PT. Bahari Eka Nusantara Sangkulirang Branch, East Kalimantan ”. Greenation International Journal of Tourism and Management 1, no. 3 (September 27, 2023): 313–318. Accessed November 21, 2024. https://research.e-greenation.org/GIJTM/article/view/55.