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Report of a Workshop on Agricultural Alternatives for Southern Africa : held in Lesotho from May 31 to June 4, 1987
(1987)
Review of the report of the Committee of Enquiry into alternative marketing arrangements for maize
Groenewald, Johannes A., (1989)
Flexibility in input substitution : a case study of South African agriculture
Zyl, Johan A. van, (1988)
The effect and persistence of major changes in economic policies on the log-term performance (trend) of Ethiopian agriculture
Alemu, Zerihun Gudeta, (2004)