Wilarso, Che Wan Mohd Noor, Ahmad Faisal Ayob, Wan Nurdiyana Wan Mansor, and Muhamad Ali Pahmi. “Failure Analysis of Valve Unit for MAN 9L21/31 Diesel Engine Generator”. Journal of Advanced Research in Applied Sciences and Engineering Technology 33, no. 3 (November 17, 2023): 185–193. Accessed July 3, 2024. https://semarakilmu.com.my/journals/index.php/applied_sciences_eng_tech/article/view/1830.