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Shiferaw, B A and Kebede, T A and You, L (2008) Technology adoption under seed access constraints and the economic impacts of improved pigeonpea varieties in Tanzania. Agricultural Economics, 39. pp. 1-15.
Shiferaw, B and Silim, S and Muricho, G and Audi, P and Mligo, J and Lyimo, S and You, L and Christiansen, J L (2007) Assessment of the Adoption and Impact of Improved Pigeonpea Varieties in Tanzania. Journal of SAT Agricultural Research, 5 (1). pp. 1-27.