Ali, Shno, Ako Hama, and Younis Ali. “A Study of Land Zoning in the Base of Traffic Noise Pollution Levels Using ArcGIS: Kirkuk City As a Case Study”. Al-Khwarizmi Engineering Journal 13, no. 4 (December 1, 2018): 137- 151. Accessed November 19, 2019. http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/443.