E. Obuba , Lois, and Mohammed S. Ozigis. “Spatio-Temporal Land-Cover Change Analysis of the Imo River Estuarine Wetlands and Its Implication on the Mangrove Ecosystem”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 52, no. 1, June 2020, pp. 181-9, https://www.gssrr.org/JournalOfBasicAndApplied/article/view/11092.