Kemerich, P.D. da C. et al. 2020. ANALYSIS OF NATURAL VULNERABILITY TO GROUNDWATER CONTAMINATION: COMPARISON BETWEEN THE GOD AND DRASTIC METHODOLOGIES . Notheast Geoscience Journal. 6, 2 (Aug. 2020), 45–53. DOI:https://doi.org/10.21680/2447-3359.2020v6n2ID19080.