Azhar, Ali, Nuddin Harahab, Fadillah Putra, Andi Kurniawan, and Gde A Prabhawatya Poundra. 2025. “oncept of ulti-rientation hipyard ndustry evelopment nvironmentally riendly and ustainable”. nternational ournal of arine ngineering nnovation and esearch 9 (1):171-78. https://doi.org/10.12962/j25481479.v9i1.5066.