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Community Forestry: Herders' Decision-Making In Natural Resources Management In Arid And Semi-Arid Africa. Community Forestry Note No. 4. Rome: Food and Agriculture Organization of the United Nations. http://www.fao.org/3/t6260e/t6260e00.htm.
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“An Evaluation Of The Acacia Albida-Based Agroforestry Practices In The Hararghe Highlands Of Eastern Ethiopia”. Agroforestry Systems 4 (2): 129-143. doi:10.1007/BF00141545. https://doi.org/10.1007/BF00141545.
. 1986. “Traditional Tree Crop Based Agroforestry In Coffee Producing Areas Of Harerge, Eastern Ethiopia”. Agroforestry Systems 16 (3): 257-267. doi:10.1007/BF00119322. https://doi.org/10.1007/BF00119322.
. 1991.