Ajayi, MT, and JO Okunlola. “Impact of Agricultural Extension Services on Adoption of Root Crops Technologies in Ondo State, Nigeria”. South African Journal of Agricultural Extension 34, no. 2 (June 2, 2006): 181–187. Accessed September 20, 2026. https://www.ajol.info/index.php/sajae/article/view/3668.