Uba,Uchechukwu Promise, Umeuduji, Joel E, Eludoyin, Olatunde Samuel 2023. USING GRACE AND GLDAS DRIVEN DATA TO ASSESS GROUNDWATER FLUCTUATIONS OF NIGER-SOUTH HYDROLOGICAL AREA OF NIGERIA . EPRA International Journal of Economic Growth and Environmental Issues(EGEI). 11, 9 (Nov. 2023), 11–21.