APA Style
Wardhani, C. Ari Tunggul. (1999).
Business English Conversation .
Yogyakarta:
AA YKPN.
Chicago Style
Wardhani, C. Ari Tunggul.
Business English Conversation.
Yogyakarta:
AA YKPN,
1999.
Text.
MLA Style
Wardhani, C. Ari Tunggul.
Business English Conversation.
Yogyakarta:
AA YKPN,
1999.
Text.
Turabian Style
Wardhani, C. Ari Tunggul.
Business English Conversation.
Yogyakarta:
AA YKPN,
1999.
Print.