Biafra je orile-ede to wa fun igba soki larin odun 1967 - 1970 ni akoko ogun abele ile Naijiria Minahan, James (2002). Encyclopedia of the Stateless Nations: S-Z. Greenwood Publishing Group. p. 762. ISBN 0-313-32384-4. http://books.google.com/?id=K94wQ9MF2JsC&pg=PA762.