Gaya APA
Basic english conversation. (2003).
:
Gitamedia Press.
Gaya Chicago
Basic english conversation.
.
:
Gitamedia Press,
2003.
Text.
Gaya MLA
Basic english conversation.
.
:
Gitamedia Press,
2003.
Text.
Gaya Turabian
Basic english conversation.
:
Gitamedia Press,
2003.
Print.