Studying Some of Quality Characteristics for Rain Water in Samarra and Balad. Tikrit Journal of Engineering Sciences, [S. l.], v. 14, n. 4, p. 18–40, 2007. DOI: 10.25130/tjes.14.4.08. Disponível em: https://tj-es.com/ojs/index.php/tjes/article/view/704.. Acesso em: 9 sep. 2026.