Q. Ahmed, Noor, and Karim R. Gubashi. “MULTIVARIATE STATISTICAL TECHNIQUES OF WATER QUALITY IN TIGRIS RIVER WITHIN BAGHDAD CITY”. Journal of Engineering and Sustainable Development 25, no. 3 (May 1, 2021): 81–96. Accessed June 5, 2026. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/60.