Pusaka, A., Syahdan, L., Manullang, S., Buwono, A. and Irvana, R. 2025. Preliminary Design of a Catamaran Ship for Water Tourism in Lake Sunter. International Journal of Marine Engineering Innovation and Research. 10, 2 (Jul. 2025), 297–309. DOI:https://doi.org/10.12962/j25481479.v10i2.6367.