Juaro Sonang Tampubolon, Suratni Ginting, Lilis Lilis. Kinerja Berthing Time terhadap Bongkar Muat Gandum Curah Kering di Kapal Mv. Green Sapphire pada PT. Gelora Perkasa Belawan. kalaos [Internet]. 2025 Dec. 30 [cited 2026 Feb. 4];6(2):26-32. Available from: https://jurnal.poltekpelsulut.ac.id/index.php/kalaos/article/view/146