Six Sigma Beyond the Factory Floor: Deployment Strategies for Financial Services, Health Care, and the Rest of the Real Economy 1/e © 2005
Ron D. Snee
Roger W. Hoerl

Six Sigma for Green Belts and Champions: Foundations, DMAIC, Tools, Cases, and Certification 1/e © 2005
Howard S. Gitlow
David M. Levine

Leading Six Sigma: A Step-by-Step Guide Based on Experience with GE and Other Six Sigma Companies 1/e © 2003
Ronald D. Snee
Roger W. Hoerl