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    Start Over You searched for: Publication Year 1989 Remove constraint Publication Year: 1989 Subject Term extension systems Remove constraint Subject Term: extension systems Subject Term farming systems research Remove constraint Subject Term: farming systems research

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    1. A review of A.I.D. experience: Farming systems research and extension projects 1975-1987

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    2. Agricultural extension systems characteristics: a matrix for examining extension models

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    4. Issues in institutionalizing on-farm client-oriented research : a review of experiences from nine national agricultural research systems

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    5. Reversals, institutions and change

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