1. American Society for Metals, Metals handbooks, vol. 6. Welding and Brazing, ASM, USA, 1971.
2. Variables of spot welding commercial aluminium sheets having different thickness;Darwish;Int J Mater Product Technol,1994
3. Sawy El, Salama A, Zakarra B. Advances in welding science and technology. Proceedings of International Conference on Trends in Welding Research, USA; 1986. p. 367–70.
4. Analysis and development of a real-time control methodology in resistance spot welding;Tsai;Res Suppl Weld J,1991
5. Metals joining manual book;Schawartz,1979