1. Equiano, Olaudah. 1995.The Interesting Narrative of the Life of Olaudah Equiano, Written by HimselfEdited by: Allison, Robert J. 54–5. Boston (original edition, 1789;
2. Crow, Captain Hugh. 1970.Memoirs of the late Captain Hugh Crow, of Liverpool26London (1830;
3. Lewis, Matthew G. 1834.Journal of a West India Proprietor129London
4. Baikie, William Balfour. 1966.Narrative of an Exploring Voyage up the Rivers Kwora and Binue307London (1856
5. Koelle, Reverend Sigismund W. 1963.Polyglotta AfricanaEdited by: Hair, P.E.H. 7–8. Graz, Austria 1854;