Ogwah C, Eyankware M. Hydrogeochemical processes in groundwater resources located around abandoned Okpara coal, Enugu SE. Nigeria. Bangladesh J. Sci. Ind. Res. [Internet]. 2020 Dec. 27 [cited 2024 Nov. 24];55(4):245-52. Available from: https://banglajol.info/index.php/BJSIR/article/view/50960