النعيمي ص. ع. ا., سعيد س. ع. ا., & محسن س. (2009). Evaluation of performance of some industrial companies In the default reference comparison method Field study in the public companies of cement (Iraqi - North - South. Journal of Economics and Administrative Sciences, 15(54), 50. https://doi.org/10.33095/jeas.v15i54.1180