Prasetyo, A. B. and Setiono, B. A. (2020) “The Effect of Covid-19 on Productivity of Loading and Unloading at BUP PT. DABN Probolinggo Branch”, JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN, 11(1), pp. 75–85. doi: 10.30649/japk.v11i1.63.