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^Dr. Onyema Nkwocha (2010). The Republic of Biafra: Once Upon a Time in Nigeria My Story of the Biafra-Nigerian Civil War - A Struggle for Survival (1967–1970). Bloomington: AuthorHouse, pp. 25. ISBN978-1-4520-6867-1.
^West Africa. Londres: Afrimedia International, 1969, pp. 1565.
"Malnutrition affects adults less than children, half of whom have now died, reports Debrel who also describes the reorganisation of the Biafran army after the 1968 defeats, making it a "political" army of 110,000 men; its automatic weapons, (...)".
^Stan Chu Ilo (2006). The Face of Africa: Looking Beyond the Shadows. Bloomington: AuthorHouse, pp. 138. ISBN978-1-4208-9705-0.
^Paul R. Bartrop (2012). A Biographical Encyclopedia of Contemporary Genocide. Santa Bárbara: ABC-CLIO, pp. 107. ISBN978-0-313-38679-4.
^Bridgette Kasuka (2012). Prominent African Leaders Since Independence. Bankole Kamara Taylor, pp. 331. ISBN978-1-4700-4358-2.
^Godfrey Mwakikagile (2001). Ethnic Politics in Kenya and Nigeria. Huntington: Nova Publishers, pp. 176. ISBN978-1-56072-967-9.