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Herpen, D. van ,  Ashby, J.A. ,  [Gender analysis in agricultural research : Proceedings international workshop, Palmira, Valle del Cauca, Colombia, 1991] ,  Gender analysis in agricultural research : Proceedings international workshop, Palmira, Valle del Cauca, Colombia, 1991

Quirós Torres, Carlos Arturo ,  Gracia, T. ,  Ashby, J.A. ,  [Farmer evaluations of technology: methodology for open-ended evaluation] ,  Farmer evaluations of technology: methodology for open-ended evaluation