Gaya APA
Easy vocabularies. (2010).
Yogyakarta:
Citra Media.
Gaya Chicago
Easy vocabularies.
.
Yogyakarta:
Citra Media,
2010.
Text.
Gaya MLA
Easy vocabularies.
.
Yogyakarta:
Citra Media,
2010.
Text.
Gaya Turabian
Easy vocabularies.
Yogyakarta:
Citra Media,
2010.
Print.