Al-Kahachi, Shatha A., Balsam S. Al-Tawash, and Omer S. Al-Tamimi. “Distribution and Enrichments of Abundant and Trace Elements in Al-Khassa Sub Basin Soil, Kirkuk, Northeastern of Iraq”. Iraqi Journal of Science 63, no. 12 (December 30, 2022): 5338–5352. Accessed December 9, 2025. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6061.