Gaya APA
STEP BY STEP MS OFFICE 2003. (2004).
USA:
ONLINE TS.
Gaya Chicago
STEP BY STEP MS OFFICE 2003.
.
USA:
ONLINE TS,
2004.
Text.
Gaya MLA
STEP BY STEP MS OFFICE 2003.
.
USA:
ONLINE TS,
2004.
Text.
Gaya Turabian
STEP BY STEP MS OFFICE 2003.
USA:
ONLINE TS,
2004.
Print.