Tasfa, H. and Umar, D. 2022. Pre-extension demonstration and evaluation of food barley technology (Hordeum vulgare L.) in West and Kellem Wollega zones. Research in Agriculture Livestock and Fisheries. 9, 1 (Apr. 2022), 29–36. DOI:https://doi.org/10.3329/ralf.v9i1.59532.