“MAGNETIC FIELD EFFECTS ON SPARK IGNITION ENGINE PERFORMANCE AND ITS EMISSIONS AT HIGH ENGINE SPEEDS”. Journal of Engineering and Sustainable Development 19, no. 4 (July 1, 2015): 37–48. Accessed May 18, 2024. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/737.