M. M. Ismail, M. F. Mohd Ali, A. F. H. Zulkifli, and S. A. Osman, “CNG-Diesel Dual Fuel Controlling Concept for Common Rail Diesel”, IJIE, vol. 10, no. 3, Jul. 2018, Accessed: Apr. 13, 2026. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2091