Khudhur, N., Sidra Qubad Yassin, Ahmed Saman Hassan, and Mortatha Nawzad Omar. “Applying Some Indices for Soil Pollution Assessment in Northern Industrial Area from Erbil Governorate”. Al-Qadisiyah Journal of Pure Science, Vol. 26, no. 4, July 2021, pp. 45-58, doi:10.29350/qjps.2021.26.4.1385.