1. Antony, J. and Banuelas, R. (2002), “Critical success factors for the successful implementation of Six Sigma projects in organizations”, The TQM Magazine, Vol. 14 No. 2, pp. 92‐9.
2. Bicheno, J. (1999), The New Lean Tool Box, Picsie, London.
3. Bryman, A. (2001), Social Research Methods, Oxford University Press, Oxford.
4. Conan Doyle, A. (1891), “A scandal in Bohemia”, The Strand Magazine.
5. George, M. (2002), Lean Six Sigma: Combining Six Sigma Quality with Lean Speed, McGraw‐Hill, New York, NY.