Variation of Residual Chlorine Concentration in Some Regions of Al_Rassafa. Iraqi Journal of Science, [S. l.], v. 57, n. 2C, p. 1436–1444, 2022. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7141.. Acesso em: 17 may. 2024.