1. Validating farmers' indigenous social networks for local seed supply in central rift valley of Ethiopia Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Deressa, A. (author) and Seboka, B. (author) Format: Journal article Publication Date: 2000-04 Published: Netherlands Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 114 Document Number: C11370 Journal Title: Journal of Agricultural Education and Extension Journal Title Details: <6(4): 245-254>