1. Aller , L. 1985
2. Modeling the risk of groundwater contamination using modified DRASTIC and GIS in Amman-Zerqa Basin;Al-Rawabdeh;Central European Journal of Engineering,2014
3. Application of groundwater vulnerability overlay and index methods to the Jijel plain area;Boufekane;Groudwater,2017
4. Evaluating the rate of aggregative risk in software development using fuzzy set theory;Chen;Cybernetics and Systems: International Journal,1999