Daulay, I. T., and A.A.B. Dinariyana. “pplication f a ombination of HP and OPSIS ethods in hipyard election”. nternational ournal of arine ngineering nnovation and esearch, vol. 8, no. 4, July 2025, pp. 658-66, doi:10.12962/j25481479.v8i4.5089.