Author of the following articles:
Review of Bamgboṣe (1991): Language and the Nation. The Language Question in Sub-Saharan Africa. Language Problems and Language Planning 19:1, pp. 71–741995.
The Handicaps of Language Planning in Africa. Focus on Language Planning: Essays in honor of Joshua A. Fishman, Marshall, David F. (ed.), pp. 153 ff.1991.