1. American Water Works Association, “Water Quality and Treatment: A Handbook of Public Water Supplies,” 3rd ed., McGraw-Hill, New York, 1971.
2. “Process Chemistry for Water and Wastewater Treatment.”;Benefield,1982
3. “Waste Recycling and Pollution Control Handbook.”;Bridgewater,1980
4. “Wastewater Treatment.”;Sundstrom,1979
5. “Environmentally-sound Water Management.”,1990