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Spielman, David J. ,  Ward, P. ,  [Economic policy analysis tools for sustainable intensification] ,  Economic policy analysis tools for sustainable intensification

Duncan, Alan J. ,  Hanson, Jean ,  Spielman, David J. ,  Puskur, Ranjitha ,  [Forage seed supply in Ethiopia—Some thoughts on current status and how it might evolve] ,  Forage seed supply in Ethiopia—Some thoughts on current status and how it might evolve

Spielman, David J. ,  Ward, P. ,  Makhija, S. ,  [Improving evidence on the impact of agricultural research and extension: Reflections on CSISAﾒs experience] ,  Improving evidence on the impact of agricultural research and extension: Reflections on CSISAﾒs experience