EVANS, J. R., & LINDSAY, W. M. (2005). Pengantar six sigma: An introduction to six sigma & process improvement. Salemba Empat.
Chicago-čujuhus (17. p.)EVANS, James R., juo William M. LINDSAY. Pengantar Six Sigma: An Introduction to Six Sigma & Process Improvement. Jakarta: Salemba Empat, 2005.
MLA-čujuhus (9. p.)EVANS, James R., juo William M. LINDSAY. Pengantar Six Sigma: An Introduction to Six Sigma & Process Improvement. Salemba Empat, 2005.
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