Palani, N. M. R., H. M. Issa, and M. S. Mahmoud. “Pollution of Soils in Sulaymaniyah District \ Kurdistan of Iraq With Heavy Metals: An Integrated Approach Using Assessment Indices & G.I.S”. International Journal of Health Sciences, vol. 6, no. S2, June 2022, pp. 14835-60, doi:10.53730/ijhs.v6nS2.8942.