Gaya APA
Usman, Lucky L. (2004).
Practical English Conversation .
:
PT Grasindo.
Gaya Chicago
Usman, Lucky L.
Practical English Conversation.
:
PT Grasindo,
2004.
Text.
Gaya MLA
Usman, Lucky L.
Practical English Conversation.
:
PT Grasindo,
2004.
Text.
Gaya Turabian
Usman, Lucky L.
Practical English Conversation.
:
PT Grasindo,
2004.
Print.