http://www.rogerblench.info/Language/Niger-Congo/VN/Nupoid/NupOP.htm (Any fulltext)
http://www.rogerblench.info/Language/Niger-Congo/VN/Nupoid/Gbari%20%20dictionary.pdf (Any fulltext)
Blench, R. (1993). A dictionary of the Gbari language. [Cambridge]: [Gbari Gbadogun].