1. J.A. von Fraunhofer, CorrosionVol. 1, 3rd Ed., L.L. Shreir, R.A. Jarmon, and G.T. Burstein, Eds., Butterworth Heinmann, 1994, p 155
2. J.C. Wataha, Alloys for Prosthodontic Restorations, J. Prosthet. Dent., 2002, 87(4), p 351–363
3. K.J. Anusavice, Phillip’s Science of Dental Materials. WB Saunders, Philadelphia, 1996
4. W.J. O’Brien, Dental Materials and Their Selection. Quintessence, Carol Stream, IL, 1997
5. J.F. Mccabe and A.W.G. Walls, Applied Dental Materials, 8th Ed., Munksgaard International Publishers, 1999