DENISE, E. M.; OKHATOR, O.; AFFAH, G. P.; ANYADIKE, M. C. PHYSICOCHEMICAL PROPERTIES AND PERIPHYTIC ALGAE OF IKOT EBAK RIVER, ESSIEN UDIM LGA, AKWA IBOM STATE. FUDMA JOURNAL OF SCIENCES, v. 6, n. 2, p. 18 - 23, 11 May 2022.