A.R Habbo, D., د., Hammodi, M. and السيد 2010. The Effect Of Adding Ethanol To leaded Gasoline on The Performance of Spark Ignition Engine. Al-Rafidain Engineering Journal (AREJ). 18, 4 (Aug. 2010), 33–43. DOI:https://doi.org/10.33899/rengj.2010.31631.