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Quality Management with Student CD (McGraw-Hill/Irwin Series Operations and Decision Sciences)
Howard S. Gitlow2004

A guide to Six sigma and process improvement for practitioners and students : foundations, DMAIC, tools, cases, and certification
Howard S. Gitlow2015
The Deming guide to quality and competitive postion / Hward S. Gitlow, Shelly J. Gitlow. -
Howard S. Gitlow