Fit sigma a lean approach to building sustainable quality beyond Six Sigma by Basu, Ron

Building high performance government through Lean six sigma : a leader's guide to creating speed, agility, and efficiency by Price, Mark

Six sigma demystified by Keller, Paul

Building high performance government through Lean Six Sigma a leader's guide to creating speed, agility, and efficiency by Price, Mark

The Six Sigma handbook a complete guide for green belts, black belts, and managers at all levels by Pyzdek, Thomas

Software design for six sigma a roadmap for excellence by El-Haik, Basem

Applying design for six sigma to software and hardware systems by Maass, Eric

The Six Sigma handbook a complete guide for green belts, black belts, and managers at all levels by Pyzdek, Thomas

Available for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access
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The lean six sigma guide to doing more with less cut costs, reduce waste, and lower your overhead by George, Mark O.

Applying design for six sigma to software and hardware systems by Maass, Eric