Ponda, H., N. Fatma, and J. Azis. “Feasibility Study of Infrastructure Investment (Tail Dock) Using Net Present Value (NPV), Internal Rate of Return (IRR), and Payback Period (PP) Methods”. Heuristic, Vol. 22, no. 1, July 2025, pp. 71 -78, doi:10.30996/heuristic.v22i1.131909.