“Development and Performance of a Model of a Perennial Grass (Andropogon Gayanus) Crop. Application to the Sahel and Sudan Zones. (01)”. Tropical Agriculture 76, no. 1 (January 30, 1999). Accessed December 12, 2024. https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/1481.