KOCHARY, SHAWKAT AHMED YASEEN, BAHZAD MOHAMMAD ALI NOORI, and TOM D. BYL. 2017. “ASSESSMENT OF SELECTED PHYSICO-CHEMICAL PARAMETERS OF GROUND WATER IN DIRECT CONTACT WITH SEPTIC TANKS: EXPERIMENTAL MODELING”. Journal of Duhok University 20 (1), 231-40. https://doi.org/10.26682/sjuod.2017.20.1.21.