A. Shamsudeen, S. Abdullah, A.K. Ariffin, M.R.M. Rasani and Y. Ali 2022. Design and Simulation of a Cylinder Head Structure for A Compressed Natural Gas Direct Injection Engine. International Journal of Automotive and Mechanical Engineering. 9, (Dec. 2022), 1620–1629. DOI:https://doi.org/10.15282/ijame.9.2013.12.0134.