& Lafta, Ali. 2020. “MEASURING THE ECONOMIC EFFICIENCY AND TOTAL PRODUCTIVITY OF RESOURCE AND THE TECHNICAL CHANGE OF AGRICULTURAL COMPANIES IN IRAQ USING SFA AND DEA FOR THE PERIOD 2005-2017”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES 51 (4): 1104-17. https://doi.org/10.36103/ijas.v51i4.1089.