1. Agricultural Extension in Developing Countries;Adams,1982
2. Agriculture, Livestock and Forestry: an Environmental Strategy for Semi-Arid Areas;Adams,1988
3. Teaching Conservation. Proceedings of a Seminar on Teaching Conservation Overseas,1987
4. Education for rural development: myth or reality;Banya;The International Journal of Educational Development,1989
5. Taking indigenous technology seriously: the case of intercropping techniques in East Africa;Belshaw;IDS Bulletin,1979