& 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). Available at: http://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/111 (Accessed: 20November2019).