1. Szeliga, Michael J., P.E. and Simpson, Debra M., “Corrosion In The Water Works Industry”, Paper Presented at the AWWA Chesapeake Section Meeting in Baltimore, Maryland on August 30–September 1, 1989.
2. Waters, Donald M., P.E., “Corrosive Conditions That Affect Water Pipelines Around The United States”, Paper Presented at the AWWA Annual Conference in Kansas City, Missouri on June 15, 1987.
3. “Simplified Method for the Electrical Soil Resistivity Measurement,”;Chaker,1981