M. El-Awad, M., A. F. Kheiralla, and C. M. Chai. “A Computer-Based Air-Fuel Model for Analysing the Performance of Spark-Ignition Internal Combustion Engines”. University of Khartoum Engineering Journal 1, no. 2 (November 16, 2022). Accessed September 1, 2025. https://uofkej.uofk.edu/index.php/uofkej/article/view/90.