1. East African Crops;Acland,1971
2. Reconnaissance Soil Map of the Lake Basin Development Authority, Western Kenya (scale 1:250 000);Andriesse,1985
3. Agro-climatic zoning and physical land evaluation in Jamaica;Batjes;Soil Use Manage.,1994
4. JAMPLES: A computerized land evaluation system for Jamaica;Batjes,1989
5. Jamaica physical land evaluation system;Batjes,1987