Challenges for economic impact assessment of classical biological control in Kenya and Tanzania

Authors: Asfaw, A.; Mithfer, D.; Lhr, B.; Waibel, H.
Subjects: impact assessment
Publication type: Chapter
Source: Mithöfer, D.; Waibel, H.. Vegetable production and marketing in Africa: socio-economic research: 209-225)
Year: 2011

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