Biaye, Landing, Fary Diome, Seybatou Diop, Modou Mbaye, Djibril Tine, Dome Tine, Ndeye Penda Dione Diene, and Gayane Faye. 2020. “Physical and Chemical Properties of Soil in the Sahelian Region: Case Study in Nioro Du Rip, Senegal”. Journal of Geography, Environment and Earth Science International 24 (5), 73-82. https://doi.org/10.9734/jgeesi/2020/v24i530229.