1. Case-control study of gastro-intestianl and urinary tract cancer mortality and drinking water chlorination;Alavanja,1978
2. American Public Health Association, American Water Works Association and Water Pollution Control Federation, (1976). Standard Methods for the Examination of Water and Waste Water, 14th ed. Washington, D.C.
3. Dougenik, J.A., Sheehan, D.E. (1975). Symap User's Reference Manual, 5th Ed. Laboratory for Computer Graphics and Spatial Analysis, Graduate School of Design, Harvard University, Quincy, Mass.
4. The Implications of Cancer-Causing Substances in Mississippi River Water;Harris,1974
5. Identification and Analysis of Organic Pollutants in Water;Henderson,1976