Gaya APA
LOOK AHEAD AN ENGLISH COURSE. (2007).
Bogor:
.
Gaya Chicago
LOOK AHEAD AN ENGLISH COURSE.
Cet. II.
Bogor:
,
2007.
Text.
Gaya MLA
LOOK AHEAD AN ENGLISH COURSE.
Cet. II.
Bogor:
,
2007.
Text.
Gaya Turabian
LOOK AHEAD AN ENGLISH COURSE.
Bogor:
,
2007.
Print.