Gygi, Craig
Six sigma for dummies
Wiley, 2005
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Brue, Greg
Six sigma
McGraw-Hill, 2006
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Pande, Pete
What is six sigma?
McGraw-Hill, 2002
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Breyfogle, Forrest W.
Managing six sigma
John Wiley & Sons, 2001
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Strategi bisnis six sigma
Manajemen Usahawan Indonesia, XXXII (01) Januari 2003: 47-49, 2003
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