Ismail MM, Fawzi M, Theerayut L, Zulkifli FH, Osman SA, Taweekun J. Energy Consumption and Emissions of Diesel-CNG Dual Fuel Engine at High Load Operation. IJIE. 2020;12(2):253-260. Accessed April 8, 2026. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2764