Akpan, D. A. Niger Delta: Building a Sustainable Economy Beyond Oil, Calabar Historical Journal Vol. 5 No. 2 December, 2013 pp. 28040……………..pg. 524-538.
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Akpan, D. A. Niger Delta: Building a Sustainable Economy Beyond Oil, Calabar Historical Journal Vol. 5 No. 2 December, 2013 pp. 28040……………..pg. 524-538.
