1. US Environmental Protection Agency , Guidelines for water reuse, US Agency for International Development, Washington DC, 2012
2. National Research Council Committee , Water Reuse: Potential for Expanding the Nation's Water Supply Through Reuse of Municipal Wastewater, National Academies Press, 2012
3. J. C. Crittenden , R. R.Trussell, D. W.Hand, K. J.Howe and G.Tchobanoglous, MWH's Water Treatment: Principles and Design, John Wiley & Sons, 2012
4. US Environmental Protection Agency , Wastewater Technology Fact Sheet: Chlorine Disinfection, 1999
5. E. A. Bryant , G. P.Fulton and G. C.Budd, Disinfection alternatives for safe drinking water, Van Nostrand Reinhold, 1992