Spielman, David J., Kelemework Mekonnen, Dawit and Alemu, Dawit. "4 Seed, Fertilizer, and Agricultural Extension in Ethiopia".
Food and Agriculture in Ethiopia: Progress and Policy Challenges, edited by Paul Dorosh and Shahidur Rashid, Philadelphia: University of Pennsylvania Press, 2013, pp. 84-122.
https://doi.org/10.9783/9780812208610.84
Spielman, D., Kelemework Mekonnen, D. & Alemu, D. (2013). 4 Seed, Fertilizer, and Agricultural Extension in Ethiopia. In P. Dorosh & S. Rashid (Ed.),
Food and Agriculture in Ethiopia: Progress and Policy Challenges (pp. 84-122). Philadelphia: University of Pennsylvania Press.
https://doi.org/10.9783/9780812208610.84
Spielman, D., Kelemework Mekonnen, D. and Alemu, D. 2013. 4 Seed, Fertilizer, and Agricultural Extension in Ethiopia. In: Dorosh, P. and Rashid, S. ed.
Food and Agriculture in Ethiopia: Progress and Policy Challenges. Philadelphia: University of Pennsylvania Press, pp. 84-122.
https://doi.org/10.9783/9780812208610.84
Spielman, David J., Kelemework Mekonnen, Dawit and Alemu, Dawit. "4 Seed, Fertilizer, and Agricultural Extension in Ethiopia" In
Food and Agriculture in Ethiopia: Progress and Policy Challenges edited by Paul Dorosh and Shahidur Rashid, 84-122. Philadelphia: University of Pennsylvania Press, 2013.
https://doi.org/10.9783/9780812208610.84
Spielman D, Kelemework Mekonnen D, Alemu D. 4 Seed, Fertilizer, and Agricultural Extension in Ethiopia. In: Dorosh P, Rashid S (ed.)
Food and Agriculture in Ethiopia: Progress and Policy Challenges. Philadelphia: University of Pennsylvania Press; 2013. p.84-122.
https://doi.org/10.9783/9780812208610.84
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