1. Welding Handbook Eighth Edition Volume 2;O’Brien,1991
2. The Procedure Hand book of Arc Welding;Richard,1995
3. Aluminum Welding;Mandal,2005
4. Welding Handbook Seven Edition Volume 4;Kearns,1981
5. Cathodic cleaning and heat input in variable polarity plasma arc welding of aluminum;Fuerschbach;Weld J,1998