Okpiliya, F.I, E.B Effiong, Imoke Eni, and Eja Eja. “Mangrove Forest Ecosystem Utilization And Depletion: Implication For Occupational Changes In Calabar South, Nigeria”. European Journal of Sustainable Development 2, no. 1 (February 1, 2013): 149. Accessed November 23, 2024. https://ecsdev.org/ojs/index.php/ejsd/article/view/46.