Wiratama, Ahmad Alfan, et al. “The Influence of Effective Time: Berthing Time on Berth Occupancy Ratio at Mirah Port, Tanjung Perak”. Jurnal Manajemen Dan Inovasi (MANOVA), vol. 8, no. 2, July 2025, pp. 76-85, doi:10.15642/manova.v8i2.2058.