REFERENCES

ath, Glenn De’, and Katharina E. Fabricius. 2000. “Classification and Regression Trees: A Powerful yet Simple Technique for Ecological Data Analysis.” Ecology 81 (11): 3178–92.
Ayenew, Tenalem, Shimeles Fikre, Frank Wisotzky, Molla Demlie, and Stefan Wohnlich. 2009. “Hierarchical Cluster Analysis of Hydrochemical Data as a Tool for Assessing the Evolution and Dynamics of Groundwater across the Ethiopian Rift.” International Journal of Physical Sciences 4 (2): 76–90.
Bhardwaj, Vikram, Dhruv Sen Singh, and A. K. Singh. 2010. “Water Quality of the Chhoti Gandak River Using Principal Component Analysis, Ganga Plain, India.” Journal of Earth System Science 119 (1): 117–27.
Candès, Emmanuel J., Xiaodong Li, Yi Ma, and John Wright. 2011. “Robust Principal Component Analysis?” Journal of the ACM (JACM) 58 (3): 11.
Chen, Kouping, Jiu J. Jiao, Jianmin Huang, and Runqiu Huang. 2007. “Multivariate Statistical Evaluation of Trace Elements in Groundwater in a Coastal Area in Shenzhen, China.” Environmental Pollution 147 (3): 771–80.
Conti, Anna, Elisa Sacchi, Marta Chiarle, Giovanni Martinelli, and Giovanni Maria Zuppi. 2000. “Geochemistry of the Formation Waters in the Po Plain (Northern Italy): An Overview.” Applied Geochemistry 15 (1): 51–65.
Faraway, Julian J. 2005. Extending the Linear Model with R: Generalized Linear, Mixed Effects and Nonparametric Regression Models . CRC press. http://books.google.com/books?hl=en&lr=&id=ODcRsWpGji4C&oi=fnd&pg=PP1&dq=linear+regression+and+generalised+linear+model&ots=80Fx8XqRgb&sig=bqtucA2lqvq1nzVFtBtnq0GIzYw.
Fitzpatrick, M. L., D. T. Long, and B. C. Pijanowski. 2007. “Exploring the Effects of Urban and Agricultural Land Use on Surface Water Chemistry, across a Regional Watershed, Using Multivariate Statistics.” Applied Geochemistry 22 (8): 1825–40.
Gio, Prana Ugiana, and Rosmaini, Elly. 2015. Belajar Olah Data Dengan Piranti Lunak Statistik . Medan: USU Press.
Gregor, Jan, Nick Garrett, Brent Gilpin, Cliff Randall, and Darren Saunders. 2002. “Use of Classification and Regression Tree (CART) Analysis with Chemical Faecal Indicators to Determine Sources of Contamination.” New Zealand Journal of Marine and Freshwater Research 36 (2): 387–98.
Irawan, Dasapta Erwin, Rofiq Iqbal, and Herry Maulana. 2015. “PRODUCED WATER: A WAY OUT OF WATER CRISIS?” In General Assembly Indonesian Petroleum Association . Jakarta, Indonesia: IPA-AAPG. doi:10.13140/RG.2.1.3463.8887.
Irawan, D.E.a, D.J.a Puradimaja, S.b Notosiswoyo, and P.a Soemintadiredja. 2009. “Hydrogeochemistry of Volcanic Hydrogeology Based on Cluster Analysis of Mount Ciremai, West Java, Indonesia.” Journal of Hydrology 376 (1-2): 221–34.
King, A. C., M. Raiber, and M. E. Cox. 2014. “Multivariate Statistical Analysis of Hydrochemical Data to Assess Alluvial Aquifer–stream Connectivity during Drought and Flood: Cressbrook Creek, Southeast Queensland, Australia.” Hydrogeology Journal 22 (2): 481–500. doi:10.1007/s10040-013-1057-1.
Kuhn, Max. 2008. “Building Predictive Models in R Using the Caret Package.” Journal of Statistical Software 28 (5): 1–26.
Lewis, Roger J. 2000. “An Introduction to Classification and Regression Tree (CART) Analysis.” In Annual Meeting of the Society for Academic Emergency Medicine in San Francisco, California , 1–14.
Loh, Wei-Yin. 2011. “Classification and Regression Trees.” Wiley Interdisciplinary Reviews: Data Mining and Knowledge Discovery 1 (1): 14–23.
Ritzi, Robert W, Stephen L Wright, Barbara Mann, and Manling Chen. 1993. “Analysis of Temporal Variability in Hydrogeochemical Data Used for Multivariate Analyses.” Groundwater 31 (2): 221–29.
Rothwell, James J., Martyn N. Futter, and Nancy B. Dise. 2008. “A Classification and Regression Tree Model of Controls on Dissolved Inorganic Nitrogen Leaching from European Forests.” Environmental Pollution 156 (2): 544–52.
Seyhan, E., A. A. Van De Griend, and G. B. Engelen. 1985. “Multivariate Analysis and Interpretation of the Hydrochemistry of a Dolomitic Reef Aquifer, Northern Italy.” Water Resources Research 21 (7): 1010–24. doi:http://dx.doi.org/10.1029/wr021i007p01010.
Stacklies, Wolfram, Henning Redestig, Matthias Scholz, Dirk Walther, and Joachim Selbig. 2007. “pcaMethods – a Bioconductor Package Providing PCA Methods for Incomplete Data.” Bioinformatics 23: 1164–67.