& et al., M. (2018). ESTIMATING PROFIT AND COST FUNCTIONS AND ECONOMIC AND TECHNICAL EFFICIENCIES OF WHEAT PRODUCTION NEJAF PROVINCE – AL-ABBASSI TOWNSHIP (A CASE STUDY) FOR SEASON 2016. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, 49(3). https://doi.org/10.36103/ijas.v49i3.111