Adams, B., Foster, S.S.D, (1992), Land-surface zoning for groundwater protection. Journal of the Institution of Water and Environmental Management,6, 312–320.
Afrasiabian, A., (2007), The importance of protection and management of Karst water as drinking water resources in Iran. Environ Geol, 52:673–677.
Andreo, B., Goldscheider, N., Vadillo, I., Mar Vias, J., Neukum, C., Sinreich, M., Jime´nez, P., Brechenmacher, J., Carrasco, F., Ho¨ tzl, H., JesuPerles, M., Zwahlen, F., (2006), Karst groundwater protection: First application of a Pan-European Approach to vulnerability, hazard and risk mapping in theSierra de Lı´bar (Southern Spain). Science of the Total Environment, 357: 54– 73.
Anna Nanou, E., Zagana, E., (2018), Groundwater Vulnerability to Pollution Map for Karst Aquifer Protection (Ziria Karst System,Southern Greece). Geosciences, 8, 125.
Ashjari, J., Raeisi, E., (2006), Influences of anticlinal structure on regional flow, Zagros, Iran. Journal of Cave and Karst studies, 68(3), 118-129.
Daly, D., Dassargues, A., Drew, D., Dunne, S., Goldscheider, N., Neale, S., et al., (2002), Main concepts of the European Approach for (karst)groundwater vulnerability assessment and mapping. Hydrogeogy; 10:340–355.
De Ketelaere, D., Hotzl, H., Neukum, C., Civita, M., Sappa, G., (2004), Hazard Analysis and Mapping. In: Zwahlen F, Editor, Vulnerability and Risk Mapping for the Protection of Carbonate (Karst) Aquifers, EUR 20912. Brussels 7 European Commission, Directorate-General XII Science, Research and Development, P. 86–105.
Dimitriou, E., Karaouzas, I., Sarantakos, K., Zacharias, I., Bogdanos, K., Diapoulis, A., (2008), Groundwater risk assessment at a heavily industrialised catchment and the impacts on a peri-urban wetland. Journal of Environmental Management 88 (3), 526e538.
Dimitriou, E., Zacharias, I., (2006), Groundwater vulnerability and risk mapping in a geologically complex area by using stable isotopes, remote sensing and GIS techniques. Environmental geology, 51(2), 309-323.
Ducci, D., (2007), Intrinsic vulnerability of the Alburni Karst system (southern Italy). In: Parise, M., Gunn, J. (Eds.), Natural and Anthropogenic Hazards in Karst Area:Recognition, Analysis and Mitigation, vol. 279. Geological Society, London,Special Publications, pp. 137e151.
Ford, D.C., Williams, P.W., (2007), Karst Hydrogeology and Geomorphology. Wiley Chichester, United Kingdom. 562 p.
Gondwe, B., Alonso, G., Gottwein,G., (2011), The influence of conceptual model uncertainty on management decisions for a groundwater-dependent ecosystem in karst. Journal of Hydrology 400, 24–40.
Haghizadeh, A., Yousefi, H., Nourmohammadi , P., Yarahmadi, Y., (2018), Evaluation and Sensitivity Analysis of کپ Method Based on the RS and GIS Techniques to Determine Aquifer Vulnerability of Aleshtar Karst Plain in Lorestan Province. JWSS 2018, 22(3): 261-272.
Kattaa, B., Al-Fares,W., Al Charideh, A.(2010), Groundwater vulnerability assessment for the Banyas Catchment of the Syrian coastal area using GIS and the RISKE method. Journal of Environmental Management 91, 1103–1110.
Kiros, M., Zhou, Y., (2006), GIS-based vulnerability assessment and mapping for theprotection of the Dire Dawa groundwater basin, Ethiopia. In: 34th Congress ofinternational association of hydrogeologists, Beijing, P.R. China.
Leyland, R., (2008), Vulnerability mapping in karst terrains, exemplified in the widerCradle of Humankind World Heritage Site, Master thesis.
Maleki, A., Bageri, S., Mataee, S., (2019), Assessing vulnerability of karstic Aquifers in Kermanshah Plain and Bistoon-Parao Mass Using COP.Researches in geographical in sciences,19(52), 129-145.
Masoompour samakosh, J., Bagheri, S., Davoodi, M., Yarahmadi, D., Jafari-Aghdam,M., (2013), Assessing and mapping the vulnerability of karstic aquifer using GIS and COP model . Global NEST Journal, Vol 15, No 3, pp 384-393.
Milanović, P., (2005), Water Resources Engineering in Karst, Taylor & Francis
Mimi, Z.A., Assi, A., (2009), Intrinsic vulnerability, hazard and risk mapping for karst aquifers: A case study, Journal of Hydrology 364 (2009) 298–310.
Morris, B.L., Foster, S.S.D., (2000), Cryptosporidium contamination hazard assessment and risk management for British groundwater sources. Water Science and Technology 41, 67–77.
Mudarra, M., Andreo, B., (2011), Relative importance of the saturated and the unsaturated zones in the hydrogeological functioning of karst aquifers: The case of Alta Cadena (Southern Spain). Journal of Hydrology 397, 263–280.
Paul Novel, J., Dimadi, A., Zervopoulou, A., Bakalowicz, M., (2007), The Aggitis karst system, Eastern Macedonia, Greece: Hydrologic functioning and development of the karst structure, Journal of Hydrology, Vol. 334, pp. 477– 492.
Plan, L., Decker, K., Faber, R., Wagreich, M., Grasemann, B., (2008), Karst morphologyand groundwater vulnerability of high alpine karst plateaus. Environmental Geology.
Ravbar, N., (2007), The Protection of Karst Waters: a Comprehensive Slovene Approach to Vulnerability and Contamination Risk Mapping. ZRC Publishing, Ljubljana, 254 p.
Vías, J.M., Andreo, B., Perles, M.J., Carrasco, F., Vadillo, I., Jiménez, P., (2006), Proposed method for groundwater vulnerability mapping in carbonate (karstic) aquifers: the cop method. Application in two pilot sites in Southern Spain. Hydrogeology Journal 14 (6), 912e925.
Vías,J., Andreo,B., Ravbar,N., Hötzl,H., (2010), Mapping the vulnerability of groundwater to the contamination of four carbonate aquifers in Europe. Journal of Environmental Management 91, 1500e1510.
Zwahlen, F., (2003), Vulnerability and risk mapping for the protection of carbonate (karst) aquifers, final report (Cost Action 620). European Commission, Directorate-General XII Science, Research and Development, Brussels, 297pp.