“Allelopathic Effect of Root Exudates of Two Sunflower Cultivars on Companion Weeds”, Iraqi Journal of Science, vol. 55, no. 4A, pp. 1516–1509, Oct. 2023, Accessed: May 20, 2024. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11247