Kelifa, A., A. Mitiku, and O. Rahmeta. “Commercialization of Smallholder farmer’s Maize Producer in Bilo Nopa District of Ilu Aba Bor Zone, Oromia Region, Ethiopia: Market Orientation and Market Participation”. Ethiopian Journal of Applied Science and Technology, Vol. 12, no. 1, 1, pp. 18 -31, https://journals.ju.edu.et/index.php/ejast/article/view/3152.