Nwambara, N. G., J. Onwuteaka, and O. P. Choko. “Long-Term Changes in Thecomposition, Abundance and Diversity of Phytoplankton Community of Oshika Rivers State”. Asian Journal of Environment & Ecology, Vol. 16, no. 4, Nov. 2021, pp. 92-16, doi:10.9734/ajee/2021/v16i430262.