Gaya APA
PANDE, P., HOLPP, L.
(2005).
WHAT IS SIX SIGMA
.
Yogyakarta:
ANDI OFFSET.
Gaya MLA
PANDE, Pete., HOLPP, Larry.
"WHAT IS SIX SIGMA".
Yogyakarta:
ANDI OFFSET,
2005.
Text.