1. R. S. Mishra and Z. Y. Ma, Mater. Sci. Eng. R, 2005, Vol. 50, pp. 1–78.
2. W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, P. Templesmith, and C.J. Dawes: G.B. Patent Application No. 9125978.8, December 1991.
3. R.S. Mishra and M.W. Mahoney (2007) Friction Stir Welding and Processing, 1st edition, ASM International, Materials Park.
4. R. Nandan, T. DebRoy, and H. K. D. H. Bhadeshia, Prog. Mater. Sci., 2008, Vol. 53, pp. 980–1023.
5. W. M. Thomas and E. D. Nicholas, Materials Design, 1997, Vol. 18, pp. 269–73.