Mohammed, S. E., Baharom, M. B., & A. Aziz, A. R. (2018). The Influence of Air-Fuel Equivalence Ratio on the Perfor-mance and Emission Characteristics of a Crank-rocker Engine. International Journal of Engineering and Technology, 7(3.17), 266-269. https://doi.org/10.14419/ijet.v7i3.17.21926