1. British National Archives, Kew, United Kingdom (BNA).
2. Amuwo, Kunle. “Historical Roots of the Nigerian Civil War: An Explanation.” In Perspectives on the Nigerian Civil War, edited by Siyan Oyeweso, 4–26. Lagos, Nigeria: OAU Humanities Series and Campus Press Limited, 1992.
3. Audu, M.S., Osuala, S. Uzoma and Ibrahim, Baba I. “Contextualizing the International Dimensions of the Nigerian Civil War, 1967–1970.” International Journal of Politics and Good Governance 4, no. 4.3 (2013): 1–19.
4. Britain-Biafra Association. Nigerian/Biafra Conflict: an International Commission of Jurists and Prima Facie Evidence of Genocide. London: Grays Inn, 1968.
5. Červenka, Zdenek. The Unfinished Quest for Unity: Africa and the OAU. London: Julian Friedmann Publishers Ltd., 1977.