1. Third National Development Plan 1975–1980;Federal Republic of Nigeria (FRN),1975
2. Fourth National Development Plan 1981–1985;FRN,1980
3. Contractors' Registration Requirements in Nigeria: Need for a Critical Review;Adams;Journal of Construction in Nigeria,1987
4. Multinationals, the State, and Control of the Nigerian Economy;Biersteker,1987
5. National Construction Policy;FRN,1991