1. Global Water Supply and Sanitation Assessment Report;World Health Organization (WHO)/United Nations Children’s Fund (UNICEF), Water Supply and Sanitation Council,2000
2. R.L. Droste, Theory and Practice of Water and Waste Water Treatment, John Wiley and Sons, New York (19197).
3. Ultraviolet Disinfection of Potable Water;Wolfe;Environ. Sci. Tech.,1990
4. Inactivation of adenoviruss types 2, 5, and 41 in drinking water by UV light, free chlorine, and monochloramine;Baxter;J. Enviro. Eng.,2007
5. The Emergence of Membranes in Water and Wastewater Treatment, in Water Treatment: Membrane Processes;Mallevialle,1996