E. M. Denise, O. Okhator, G. P. Affah, and M. C. Anyadike, “PHYSICOCHEMICAL PROPERTIES AND PERIPHYTIC ALGAE OF IKOT EBAK RIVER, ESSIEN UDIM LGA, AKWA IBOM STATE”, FJS, vol. 6, no. 2, pp. 18 - 23, May 2022.