Bisgaard, S. 2002. Improving business processes with Six Sigma. Presented at 56th Annual Quality Congress. Denver, CO (May).
Breyfogle, F.W. 2003. Implementing Six Sigma, second edition. New York: John Wiley and Sons.
Creveling, C. M., J. L. Slutsky, and D. Antis, Jr. 2003. Design for Six Sigma in technology and product development. Upper Saddle River, NJ: Prentice Hall.
George, M. L. 2003. Lean Sigma for service. New York: McGraw-Hill.
Hahn, G. J., N. Doganaksoy, and R. W. Hoerl. 2000. The evolution of Six Sigma. Quality Engineering 12 3:317326.
Hoerl, R. W. 2001. Six Sigma Black Belts: what do they need to know? (with discussion). Journal of Quality Technology 33 4:391435.
Hoerl, R. W., and R. D. Snee. 2002. Statistical thinking: improving business performance. Pacific Grove, CA: Duxbury Press.
Honeywell. 2002. The Honeywell edge. Six Sigma Forum Magazine (February) 1417.
Jones, M. H., Jr. 2004. Six Sigma ... at a bank? Six Sigma Forum Magazine (February) 1317.
Snee, R. D., and R. W. Hoerl. 2003. Leading Six Sigma: a step-by-step guide based on experience with GE and other Six Sigma companies. Upper Saddle River, NJ: FT Prentice Hall.
Snee, R. D., and W. F. Rodebaugh, Jr. 2002. Enhance your project selection process: every company should be able to manage its project portfolio and create an overall organizational improvement system. Quality Progress (September) 7880.
Thottam, J. 2003. Where the good jobs are going. Time (4 August) 3639.
Welch, J. F. 2001. Jack: straight from the gut. New York: Warner Business Books.
Young, J. 2001. Driving performance results at American Express. Six Sigma Forum Magazine (November) 1927.