Prasetiawan, Andi, Carolus Geleuk Sengadji, and Kevin Zefano Gedalya. 2023. “Optimization of Ship Crew Placement in Accordance With Safe Manning at PT. Pertamina International Shipping (PIS)”. RSF Conference Series: Engineering and Technology 3 (1):313-18. https://doi.org/10.31098/cset.v3i1.765.