A link to the book "Okobo Story of a Nigerian People" by Essesien Ntekim available on google books.
Ntekim, Essesien. 2013. Okobo Story of a Nigerian People. Xlibris Corp.
URL
http://books.google.com/books?id=ELSmAwAAQBAJ&printsec=frontcover&source=gbs_ge…
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