“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, no. 2A (June 24, 2022): 877–871. Accessed November 24, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7450.