M. Ali, Obed, Fattah H. Hasan, and Abid Z. Khalaf. “Improving Diesel Engine Efficiency and Emissions Using Fuel Additives”. Diyala Journal of Engineering Sciences 11, no. 2 (June 1, 2018): 74–78. Accessed May 18, 2024. https://djes.info/index.php/djes/article/view/156.