HORSFALL, J. D, et al. “PHYTOREMEDIATION OF FISH POND EFFLUENT IN CONSTRUCTED WETLAND USING THREE AQUATIC MACROPHYTES: WATER LETTUCE, DUCKWEED, AND WATER HYACINTH”. Nigerian Journal of Fisheries, vol. 17, no. 1, June 2020, pp. 1836-40, https://fisonjournal.org.ng/index.php/njf/article/view/119.