“Comparison of Practical Investigations for CO Emissions Emitted From Single Cylinder S. I. Engine Fueled With Different Kinds of Hydrocarbon Fuels and Hydrogen”, alkej, vol. 7, no. 1, pp. 22–29, Mar. 2019, Accessed: May 03, 2024. [Online]. Available: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/467