al-Kharbouli, Khalid Ali Atiyah. “Climate Thermal Requirements for Grain Crops and Their Suitability in Iraq”. Al-Adab Journal, no. 133 (June 15, 2020): 327–348. Accessed May 11, 2025. https://aladabj.uobaghdad.edu.iq/index.php/aladabjournal/article/view/735.