1- Neshat A, Pradhan B, Javadi S. Risk assessment of groundwater pollution using monte carlo approach in an agriculture region: an example from Kerman plain, Iran. Computers, Environment and urban system. 2015; 50(1): 66-73.
2- Al-adamat R.A.N, Foster I.D.L, Baban S.M.J. Groundwater vulnerability and risk mapping for the Basaltic aquifer of the Azraq basin of Jordan using GIS and Remote sensing and DRASTIC, Applied Geography. 2003; 23(4): 303-324.
3- Samani S, Kalantari N, Rahimi, M.H. Evaluation of groundwater quality by Cluster analysis technique in Avan aquifer, Journal of Water resources engineering. 2011; 4: 75-85. [Persian].
4- Aghdar H, Mohammadyari F. Assessment of groundwater quality using Cluster analysis method in Mehran and Dehloran aquifer. The first international conference on new achievements in Agriculture, natural resources and environmental sciences. 2014. [Persian].
5- Ouyang Y, Jia Zh, Cui L. Estimating impacts of land use on groundwater quality using trilinear analysis. Environmental monitoring and assessment. 2014; 186(9): 5353-5362.
6- Ghiasi N, Arabkhedri M, Ghafari A, Hatami H. Survey on the effect of some morphometric characteristics of basins on peak discharge with different return periods (Case study north Albors basins). Research and development journal. 2004; 62: 2-10. [Persian].
7- Goulet V, Rocourt J, Jacquet C. Cluster of listeriosis cases in France. Euro surveillance weekly. 2002; 27(6).
8- Kim K J, Ahn H. A recommender system using GA K-means clustering in an online shopping market. Expert Syst. Appl. 2008; 34 (2): 1200–1209.
9- Usman N, Toriman M.E, Juahir H. Assessment of Groundwater Quality Using Multivariate Statistical Techniques in Terengganu. Science and Technology, 2014; 4(3): 42-49.
10- Zou H, Zou Z, Wang X. An Enhanced K-Means Algorithm for Water Quality Analysis of the Haihe River in China. Int. J. Environ. Res. Public Health. 2015; 12: 1400-1413.
11- Azhar S.C, Aris A.Z, Yussof M.K, Ramli M.F, Juahir H. Classification of river water quality using multivariate analysis. Procedia Environmental Sciences. 2015; 30: 79-84.
12- Oorkavalan G, Chidambaram S.M, Mariappan V, Kandaswamy G, Natarajan S. Cluster Analysis to Assess Groundwater Quality in Erode District, Tamil Nadu, India. Circuits and Systems, 2016; 7: 877-890.
13- Fianko J.R, Osae S, Adomako D, Achel D.J. Relationship between land use and groundwater quality in six districts in the eastern region of Ghana. Environmental Monitoring and Assessment. 2009; 153(4): 139-146.
14- Yongjun J, Daoxian Y, Shiyou X, Linli L, Gui Zh, Raosheng H. Groundwater quality and land use change in a typical karst agricultural region: a case study of Xiaojiang watershed, Yunnan. Journal of geographical Sciences. 2006; 16(4): 405-414.
15- Lerner D, Harris B. The relationship between land use and groundwater resources and quality. Land Use Policy. 2009; 26(1): 265-273.
16- Announcement. Hydrogeology section- the report of Quality and Quantity Modelling study in Qazvin aquifer. Qazvin Regional Water Company. 2012: 23-26. [Persian].
17- Han J, Kamber M. Data mining concepts and techniques. San Francisco, U.S.A, Morgan Kaufman Publisher. 2006: 110.
18- Hoppner F, Klawonn F, Kruse R, Runkler T. Fuzzy cluster analysis. Sussex, England: Wiley and Sons. 1999: 146.
19- Feil B. Fuzzy Clustering in Process of Data Mining. Ph.D. thesis, Department of Process Engineering, University of Veszprem Hungary. 2006.
20- Kim D.W, Lee K.H, Lee D. On cluster validity index for estimation of the optimal number of fuzzy clusters. Journal of Pattern Recognition Society. 2004; 37: 209-225.
21- Hashemy S.M. Spatial and Temporal Clustering in Irrigation network using classic and fuzzy technique. M.Sc. thesis, Tarbiat Modares University. 2008. [Persian].
22- Davies D.L, Bouldin D.W. A cluster separation measure. IEEE Trans. Pattern Anal. Mach. Intell. 1979; 1(4): 224–227.