Fitri, Sutopo Purwono, et al. “Waste Heat Recovery from Exhaust Gas and Cooling Water As Water Heater on Domestic System of a Cruise Ship 48 Meters”. International Journal of Marine Engineering Innovation and Research, vol. 3, no. 3, July 2025, pp. 84-92, doi:10.12962/j25481479.v3i3.6057.