1. ADEGBIJA, Efurosibina. 1993a. Multilingualism : A Nigerian Case Study. Unpublished Manuscript.
2. "The Graghicization of a Small-group Language : The Case of Oko.";ADEGBIJA;International Journal of the Sociology of Language,1993
3. "Survival Strategies of Minority Languages : a Case Study of Oko in Nigeria.";ADEGBIJA;ITL Review of Applied Linguistics,1994
4. Marketing new lexical terminology in Nigeria: Some practical considerations