Ali Hussain Al-Badrani, Ahmed, and Hassan Thamer Zinzel. “Economic and Standard Analysis of the Wheat Crop Supply Function in Iraq for the Period (1993-2018)”. College of Basic Education Research Journal 16, no. 4 (November 1, 2020): 965–984. Accessed October 27, 2025. https://jeh.uomosul.edu.iq/index.php/berj/article/view/38526.