ARTHUR JAY. (2003). SIX SIGMA INSTRUCTOR GUIDE. MACMILLAN.
Chicago-čujuhus (17. p.)ARTHUR JAY. SIX SIGMA INSTRUCTOR GUIDE. DELHI: MACMILLAN, 2003.
MLA-čujuhus (9. p.)ARTHUR JAY. SIX SIGMA INSTRUCTOR GUIDE. MACMILLAN, 2003.
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