Mahmood, Yadgar Ali, Masood Saber Mohammed, and Halgurd Nasraden Hassan. “A Physiological Explanation of Drought Effect on Flag-Leaf Specific Weight and Chlorophyll Content of Barley”. Iraqi Journal of Science 60, no. 12 (December 29, 2019): 2531–2539. Accessed December 22, 2025. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1194.