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Book List
2
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An ex-ante evaluation of farming systems research in northeastern Mali : implications for research and extension policy / by Bruno Henry de Frahan.
- Michigan state university. Department of economics. Department of agricultural economics,
- 1995.
- East Lansing, MI :
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Agricultural research impact assessment : the case of maize technology adoption in southern Mali / by Duncan Boughton and Bruno Henry de Frahan.
- Michigan state university. Department of economics. Department of agricultural economics,
- 1994.
- East Lansing, MI :