Assessment of Tigris River Water Quality Using Multivariate Statistical Techniques. Tikrit Journal of Engineering Sciences, [S. l.], v. 26, n. 4, p. 26–31, 2022. DOI: 10.25130/tjes.26.4.04. Disponível em: https://www.tj-es.com/ojs/index.php/tjes/article/view/130.. Acesso em: 12 sep. 2026.