“Production and Economic Evaluation of White Guinea Yam (Dioscorea Rotundata) Minisetts under Ridge and Bed Production Systems in a Tropical Guinea Savanna Location, Nigeria”. Tropical Agriculture 69, no. 1 (January 30, 1992). Accessed July 18, 2025. https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/4792.