Omer Hussain, Ramadhan. “PHYTOEXTRACTION OF LEAD FROM POLLUTED SOIL BY Silybum Marianum L.”. Journal of Duhok University 22, no. 1 (August 1, 2019): 234-242. Accessed May 2, 2024. https://journal.uod.ac/index.php/uodjournal/article/view/335.