Anwar, R. N., D. Faturachman, M. Quintania, H. Sirait, and R. Setiawati. “ompetitive dvantage nalysis of hipyard ompanies in ndonesia”. nternational ournal of arine ngineering nnovation and esearch, vol. 5, no. 2, July 2025, pp. 111-6, doi:10.12962/j25481479.v5i2.6011.