KASSIR, A. F. et al.
 Determination of the Heavy Metals in the Contaminated Soil Zones at College of Education Ibn Al-Haitham -University of Baghdad.
<strong>Ibn AL- Haitham Journal For Pure and Applied Science</strong>, [S.l.], v. 24, n. 2, may 2017.
ISSN 2521-3407.
Available at: &lt;<a href="http://jih.uobaghdad.edu.iq/index.php/j/article/view/752" target="_new">http://jih.uobaghdad.edu.iq/index.php/j/article/view/752</a>&gt;. Date accessed: 01 dec. 2019.