Six Sigma: SPC and TQM in manufacturing and services
References
^ Geoff Tennant (2012). Six Sigma: SPC and TQM in manufacturing and services, Gower Publishing. ISBN 9780566083747 (revised May 2012)^ Geoff Tennant (2012). 9780566083747, Gower Publishing, Ltd.. Wiki. ISBN 9780566083747 (revised Oct 2012)
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