1. Deviance in the English of Ghanaian newspapers
2. Pyne P. C. 1971. ‘The Sources, Meaning and Development of Students’ Idioms on the campus.’ Unpublished paper presented to the Department of Linguistics, University of Ghana, Legon, Ghana.
3. Asare K. 1986. ‘The development of Unconventional English in Ghana.’ Unpublished essay presented to the Department of English, University of Ghana, Legon, Ghana.