Gaya APA
General English Conversations. (2012).
339:
.
Gaya Chicago
General English Conversations.
Kesatu.
339:
,
2012.
Text.
Gaya MLA
General English Conversations.
Kesatu.
339:
,
2012.
Text.
Gaya Turabian
General English Conversations.
339:
,
2012.
Print.