1. A Astel,M Biziuk,A Przyjazny,J Namieśnik (2006). Chemometrics in monitoring spatial and temporal variations in drinking water quality. Water Research, 40(8), 1706-1716.
2. C Bilos,J Colombo,C Skorupka,M Rodriguez Presa (2001). Sources, distribution and variability of airborne trace metals in La Plata City area, Argentina. Environmental Pollution, 111(1), 149-158.
3. J Einax,U Soldt (1999). Geostatistical and multivariate statistical methods for the assessment of polluted soils—merits and limitations. Chemometrics and Intelligent Laboratory Systems, 46(1), 79-91.
4. B Everitt (1993). Cluster analysis. Cluster analysis
5. A Facchinelli,E Sacchi,L Mallen (2001). Multivariate statistical and GIS-based approach to identify heavy metals sources in soils. Environmental Pollution, 114, 313-324.
6. J Grande,J Borrego,J Morales,M De La Torre (2003). A description of how metal pollution occurs in the Tinto-Odiel rias (Huelva-Spain) through the application of cluster analysis. Marine Pollution Bulletin, 46, 475-480.
7. P Hopke (1992). Factor and correlation analysis of multivariate environmental data. Methods of environmental data analysis, 139-180.
8. J Hair,Jr,R Anderson,R Tatham,W Back (1988). Multivariate data analysis. Multivariate data analysis
9. I Jolliffe (1986). Principal component analysis. Principal component analysis
10. J Jobson (1991). Applied multivariate data analysis. Applied multivariate data analysis
11. S Karn,H Harada (2001). Surface water pollution in three urban territories of Nepal, India, and Bangladesh. Environ Manage, 28(4), 483-496.
12. M Koch,W Rotard (2001). On the contribution of background sources to the heavy metal content of municipal sewage sludge. Water Science and Technology, 43(2), 67-74.
13. T Kowalkowski,R Zbytniewski,J Szpejna,B Buszewski (2006). Application chemometrics in river water classification. Water Research, 40, 744-752.
14. Y Lin,T Teng,T Chang (2002). Multivariate analysis of soil heavy metal pollution and landscape pattern in Changhua county in Taiwan. Landscape and Urban Planning, 62, 19-35.
15. M Mclaughlin,D Parker,J Clarke (1999). Metals and micronutrients – food safety issues. Field Crops Research, 60(1-2), 143-163.
16. M Mclaughlin,R Hamon,R Mclaren,T Speir,S Rogers (2000). Review: A bioavailability-based rationale for controlling metal and metalloid contamination of agricultural land in Australia and New Zealand. Australian Journal of Soil Research, 38(6), 1037-1086.
17. J Nolte (1988). Pollution source analysis of river water and sewagesludge. Environmental Technology Letters, 9, 857-868.
18. Hakan Pekey,Duran Karakaş,Mithat Bakogˇlu (2004). Source apportionment of trace metals in surface waters of a polluted stream using multivariate statistical analyses. Marine Pollution Bulletin, 49(9-10), 809-818.
19. A Qishlaqi,F Farid Moore (2007). Statistical Analysis of Accumulation and Sources of Heavy Metals Occurrence in Agricultural Soils of Khoshk River Banks, Shiraz, Iran ,American-Eurasian. J. Agric. & Environ. Sci, 2(5), 565-573.
20. S Salman,Y Abu Ruka'h (1999). Multivariate and principal component statistical analysis of contamination in urban and agricultural soils from north Jordan. Environmental Geology, 38(3), 265-270.
21. S Sandhu,W Warren,P Nelson (1976). Trace inorganics in rural potable water and their correlation to possible sources. Water Research, 12, 257-261.
22. M Sena,R Frighetto,P Valarini,H Tokeshi,R Poppi (2002). Discrimination of management effects on soil parameters by using principal component analysis: a multivariate analysis case study. Soil and Tillage Research, 67(2), 171-181.
23. V Simeonov,J Stratis,C Samara,G Zachariadis,D Voutsa,A Anthemidis,M Sofoniou,T Kouimtzis (2003). Assessment of the surface water quality in Northern Greece. Water Research, 37(17), 4119-4124.
24. Kunwar Singh,Amrita Malik,Dinesh Mohan,Sarita Sinha (2004). Multivariate statistical techniques for the evaluation of spatial and temporal variations in water quality of Gomti River (India)—a case study. Water Research, 38(18), 3980-3992.
25. S Shrestha,F Kazama (2007). Assessment of surface water quality using multivariate statistical techniques: A case study of the Fuji river basin, Japan. Environmental Modelling & Software, 22(4), 464-475.
26. B Subramanian (2004). Water Quality in South Asia. Asian Journal of Water, Environment and Pollution, 1(1-2), 41-54.
27. M Tahri,M Bounakhla,E Bilal,J Gruffat,J Moutte,D Garcia (2005). Multivariate Analysis of heavy metal contents in soils, sediments and water in the region of Meknes (Central Morocco). Environmental Monitoring and Assessment, 102, 405-417.
28. G Tuncer,S Tuncel,G Tuncel,T Balkas (1993). Metal Pollution in the Golden Horn, Turkey: Contribution of Natural and Anthropogenic Components Since 1913. Water Science and Technology, 28(8-9), 59-64.
29. Marisol Vega,Rafael Pardo,Enrique Barrado,Luis Debán (1998). Assessment of seasonal and polluting effects on the quality of river water by exploratory data analysis. Water Research, 32(12), 3581-3592.
30. D Wunderlin,M Diaz,M Ame,S Pesce,A Hued,M Bistoni (2001). Pattern recognition techniques for the evaluation of spatial and temporal variations in water quality. A case study: Suquia river basin (Cordoba-Argentina). Water Research, 35, 2881-2894.
31. Iris Yeung (1999). Multivariate Analysis of the Hong Kong Victoria Harbour Water Quality Data. Environmental Monitoring and Assessment, 59(3), 331-342.