Zaidan, Ali G., Eskander H. Ali, Sadoon F. Khater, and Mhanaa A. Mahmood. “AN ECONOMIC ANALYSIS TO ESTIMATE PROFIT FUNCTION AND MEASUREMENT TECNICAL EFFICIENCY FOR PRODUCTION POULIRT IN DIYALA PROVINCE ”. Diyala Agricultural Sciences Journal 8, no. 2 (December 30, 2016): 72–83. Accessed May 6, 2024. https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/1486.