Arief, Irfan Syarif, et al. “Analysis Effect of Duct Length– Nozzle Diameter Ratio and Tip Clearance Variation on the Performance of K-Series Propeller”. International Journal of Marine Engineering Innovation and Research, vol. 2, no. 1, July 2025, pp. 77-85, doi:10.12962/j25481479.v2i1.6131.