Mekasha, A., and A. Tegegn. “Farmers’ Participatory Forage Cowpea (Vigna Unguiculata) Variety Selection in the Mid Rift Valley Areas of Ethiopia”. Ethiopian Journal of Applied Science and Technology, Vol. 8, no. 2, 1, pp. 42-52, https://ejhs.ju.edu.et/index.php/ejast/article/view/698.