Gezahagn K, Getnet A, Alemayehu M and Fekede F 2014: Forage nutritive values of vetch species and their accessions grown under nitosol and vertisol conditions in the central highlands of Ethiopia. Livestock Research for Rural Development. Volume 26, Article #20. Retrieved , from http://www.lrrd.org/lrrd26/1/kebe26020.htm