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.
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.