Miepamo, W. A., Etta, B. A., & Ikirigo, J. (2021). Aquifer Vulnerability Assessment in Ekowe, Bayelsa State, Niger Delta Area, Nigeria using GIS-Based on Drastic Method. *Journal of Science & Technology*, *06*(03), 37–44. https://doi.org/10.46243/jst.2021.v6.i3.pp37-44