Kazhin Sarbaz Rajab and Akram Othman Esmail 2022. Influence of Ion Pairs and Activity on the Index of Irrigation Water Quality Relying on Some Modern Terms in Erbil Governorate. *. Zanco Journal of Pure and Applied Sciences. 34, 2 (Apr. 2022), 118–128. DOI:https://doi.org/10.21271/ZJPAS.34.2.9.