Edosa, Tolesa Tesema, Temesgen Kebede, and Zekarias Shumeta. “Analysis of Price Efficiency of Smallholder Farmers in Maize Production in Gudeya Bila District, Oromia National Regional State, Ethiopia: Stochastic, Dual Cost Approach”. International Journal of Contemporary Research and Review 10, no. 04 (April 6, 2019): 21480-21487. Accessed May 19, 2019. http://ijcrr.info/index.php/ijcrr/article/view/690.