Robens Institute (1996) Fact Sheet 2.33: Turbidity Measurement. Fact Sheets on Environmental Sanitation. University of Surrey, World Health Organization.
 (1999) Standard Methods for the Examination of Water and Wastewater.
 Koohestanian, A., Hosseini, M. and Abbasian, Z. (2008) The Separation Method for Removing of Colloidal Particles from Raw Water. American-Eurasian Journal of Agricultural and Environmental Sciences, 4, 266-273.
 Droh, G., Kamagate, Seidel, L. and Jean, B. (2008) Coagulation-Flocculation Treatment of a Tropical Surface Water with Alum for Dissolved Organic Matter (DOM) Removal: Influence of Alum Dose and pH Adjustment. Journal of International Environmental Application & Science, 3, 247-257.
 Nathanson, J.A. (2003) Basic Environmental Technology: Water Supply, Waste Management, and Pollution Control. Prentice Hall, Upper Saddle River.
 Joyce, T.M., et al. (1996) Inactivation of Fecal Bacteria in Drinking Water by Solar Heating. Applied and Environmental Microbiology, 62, 399-402.
 Howard Hughes Medical Institute (2001) Water Contaminant Lab.
 World Health Organization (2004) Guidelines for Drinking-Water Quality. 3rd Edition, Volume 1, Recommendations, Geneva.
 Myre, E. and Shaw, R. (2006) The Turbidity Tube: Simple and Accurate Measurement of Turbidity in the Field. Department of Civil and Environmental Engineering Michigan Technological University.
 Osmonics (1991) Pure Water. Hand Book, USA.
 Pure Water Products, LLC.
 Parmar, K.A., Prajapati, S., Patell, R. and Dabhi, Y. (2011) Effective Use of Ferrous Sulfate and Alum as a Coagulant in Treatment of Dairy Industry Wastewater. ARPN Journal of Engineering and Applied Sciences, 6.