الخير معروف, and عشيش نور. “Comparison Between the Concentrations of Ammonium Ion and the Results of the Microbiological Examination of Some Drinking Water Samples”. Tishreen University Journal -Medical Sciences Series 43, no. 1 (March 15, 2021). Accessed November 24, 2024. https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/10459.