A. Mohammed, F., فرهاد, Q. Smail, S., سروه, A. Kettanah, Y., & ياووز. (2025). Environmental Significance of Major and Trace Elements in the Soils of Selected Areas in Erbil City, Kurdistan Region, Northern Iraq. Iraqi National Journal of Earth Science (INJES), 13(2), 15–32. https://doi.org/10.33899/earth.2013.79658