1. Agricultural Sector Policy;African Development Bank,1990
2. Rural Livelihoods: Crises and Responses;Bernstein,1992
3. Market diversification and agricultural export prospects in sub-Saharan Africa;Duncan,1992
4. Relationships between demographic change and environmental productivity in Kissidougou, Guinea;Fairhead,1993
5. Agriculture Towards 2010, Report of the 27th Biennial Conference;FAO,1993