oliman Khalaf , Mohamed, and Ibrahim Omar Saeed. “Evaluation of the Water Quality of the Tigris River South of Mosul Using the National Foundation for Health’s Water Quality Index NSF-WQI”. Tikrit Journal of Pure Science, vol. 31, no. 4, Aug. 2026, pp. 23-31, doi:10.25130/tjps.v31i4.2029.