"Technology transfer" . . "Voorlichtingskunde." . . "Handbooks, manuals, etc" . . . . . . . . . . . . . . "Developing technology with farmers a trainer's guide for participatory learning"@en . "Developing technology with farmers a trainer's guide for participatory learning" . "Developing technology with farmers a trainer's guide"@en . . . "Matériel didactique" . . . . "Gidsen (vorm)" . . . . . . . . . . . . . "Developing technology with farmers : a trainer's guide" . "Handbooks and manuals"@en . . . . . "Developing technology with farmers : a trainer's guide for participatory learning" . "Developing technology with farmers : a trainer's guide for participatory learning"@en . . . . . "Developing technology with farmers : a trainer's guide participatory learning"@en . . . . . . . "Agricultural extension work." . . "Agricultural extension workers." . . "Nachhaltigkeit." . . "Entwicklungsländer." . . "Agrarische ontwikkeling." . . "Agriculture." . . "Agriculture" . "Farmers." . . "Extension activities" . . . . "Landwirtschaftliche Beratung." . . "Technische vernieuwing." . .