Mounkaila, Yahaya, Baragé Moussa, and Issa Garba. “ a Proxy for the Associated Millet and Cowpea Growth Stages in the Sahelian Zone”. European Journal of Applied Sciences 9, no. 5 (October 23, 2021): 299–310. Accessed May 21, 2024. https://journals.scholarpublishing.org/index.php/AIVP/article/view/11002.