C. Emmanuel Chukwuma, C. Godwin Chukwuma, I. Joseph Uba, C. Louis Orakwe, and N. Kingsley Ogbu, “Irrigation Water Quality Index Assessment of Ele River in Parts of Anambra State of Nigeria”, Arch. Curr. Res. Int., vol. 4, no. 3, pp. 1–6, May 2016.