Ewaid, S. H. and Abed, S. A. (2017) “Water Quality Assessment of Al-Gharraf River, South of Iraq Using Multivariate Statistical Techniques”, Al-Nahrain Journal of Science, 20(2), pp. 114-122. Available at: https://anjs.edu.iq/index.php/anjs/article/view/89 (Accessed: 27August2021).