Ofianda R, M. ., Simatupang, D. ., Dwiyani, N. ., & Gadji, F. U. (2023). Analysis of Damage to Exhaust Valve in Auxiliary Engine Number 3 For Smooth Operation n The Mt. Kurau. Greenation International Journal of Engineering Science, 1(3), 140–144. https://doi.org/10.38035/gijes.v1i3.50