Bibliography
| Author | Ohiri-Aniche, Chinyere |
| Year | 1999 |
| Title | Language diversification in the Akoko area of Western Nigeria |
| Book | Archaeology and Language IV. Language change and cultural transformation, pp. 79-94 |
| Editors | Blench, Roger Spriggs, Matthew |
| Publisher | London, New York: Routledge |