Arief, I. S., A. Santoso, and A. Azzam. “esign of lettner otor in ontainer arrier 4000 WT ith FD”. nternational ournal of arine ngineering nnovation and esearch, vol. 2, no. 2, July 2025, pp. 133-9, doi:10.12962/j25481479.v2i2.6116.