Ekambaram, S. K
The statistical basis of quality control charts : a manual for business and factory managers
Asia Publishing House, 1960
 Buku Teks SO
Aikens, C. Harold
Quality: a corporate force: managing for excellence
Pearson/Prentice Hall, 2006
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Soin, Sarv Singh
Total quality control essential : key elements, methodologies and managing for success
McGraw-Hill, 1992
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Soin, Sarv Singh
Total quality control essentials: key elements, methodologies, and managing for success
McGraw-Hill, 1993
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Breyfogle, Forrest W.
Managing six sigma
John Wiley & Sons, 2001
 Buku Teks SO