1.
& Mahmood A-M. ESTIMATING PROFIT , COST FUNCTION AND TECHNICAL EFFICIENCIES OF RICE PRODUCTION IN NEJAF FOR SEASON 2016*. IJAS [Internet]. 23Oct.2019 [cited 18Apr.2021];50(5). Available from: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/789