محمد ا.س. and يوسف ه.ي. 2012. The Effect of the Stability of Some Commodity Activities in Iraq on the Estimation of the Statistical Data Models for the Period (1988-2000). Journal of Economics and Administrative Sciences. 18, 66 (Jun. 2012), 332. DOI:https://doi.org/10.33095/jeas.v18i66.1080.