1. D.A. Jones, “Principles and Prevention of Corrosion” Macmillan Publishing Company, New York, (1992) 442.
2. V. Ashworth, “Principles of Cathodic Protection,” in Corrosion Control, Third edition, edited by L.L. Shreir, R.A. Jarman, and G.T. Burstein, Butterworth-Heinemann, (1994) 10:24.
3. H.H. Uhlig and R.W. Revie, “Corrosion and Corrosion Control” John Wiley, New York, (1985) 217–223.
4. S.L. Pohlman, “Stray-Current Corrosion” in Corrosion Vol 13, Ninth edition, ASM Handbook, ASM International, (1987) 87.
5. M.G. Fontana, “Corrosion Engineering,” third edition, McGraw-Hill Book Company, New York, (1986).