Zain, Riza Rosali, Juny Andry Sulistyo, and Sumirin Sumirin. 2026. “Analysis of Pilotage Service Time Trends at Terminals in the Surabaya’s West Shipping Channel”. ASTONJADRO 15 (2):537-44. https://doi.org/10.32832/astonjadro.v15i2.21406.