Sultani, Aseel H. H., and KhalilI.Abass Al-shemarri. 2022. “Morphological Study of the Pollen Grains of Some Species Belong to Genera Urtica L. And Parietaria L. (Urticaceae) in Iraq”. Iraqi Journal of Science 57 (2A): 877-71. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7450.