APA Style
Utama, Irwin. (2011).
ITIL Foundation V3 .
Jakarta:
.
Chicago Style
Utama, Irwin.
ITIL Foundation V3.
Jakarta:
,
2011.
Text.
MLA Style
Utama, Irwin.
ITIL Foundation V3.
Jakarta:
,
2011.
Text.
Turabian Style
Utama, Irwin.
ITIL Foundation V3.
Jakarta:
,
2011.
Print.