Bele, S. 2016. THE USE OF THE DRASTIC METHOD AND GIS IN ASSEESSING THE VULNERABILITY OF THE GROUNDWATER, IN THE VELIPOJA -ZADRIMA AQUIFER, ALBANIA. Bulletin of the Geological Society of Greece. 50, 2 (Jul. 2016), 639–647. DOI:https://doi.org/10.12681/bgsg.11769.