Alemu, Abebe. “Determinants of Smallholders’ Preference to Hybrids - Prospect for Upgrading to High-Value Food Chains”. Journal of Agribusiness and Rural Development 41, no. 3 (December 31, 2016): 237-247. Accessed May 5, 2024. http://www1.up.poznan.pl/jard/index.php/jard/article/view/174.