1. Adepoju, A., 1984, Linkages between internal and international migration: the African situation. International Social Science , Vol. 36, 441–452.
2. Becker, C. M. and Morrison, A. R., 1988, The determinants of urban population growth in Sub-Saharan Africa. Economic Development and Cultural Change , Vol. 36, 259–278.
3. Courel, A. and Pool, D. I., 1975, Upper Volta. In J. Caldwell, editor, Population Growth and Socioeconomic Change in West Africa. New York: Population Council Inc.
4. Dankousson, I., Diarra, S., Laya, D., and Pool, D. I., 1975, Niger. In J. Caldwell, editor, Population Growth and Socioeconomic Change in West Africa. New York: Population Council Inc.
5. Hance, W. A., 1970, Population Migration and Urbanization in West Africa. New York: University of Columbia Press.