Gaya APA

Udoyono, Bambang. (2012). English Conversation For Customer Service And Sales Promotion Staff (1st ed.). Yogyakarta: ANDI Offset.

Gaya Chicago

Udoyono, Bambang. English Conversation For Customer Service And Sales Promotion Staff. 1st ed. Yogyakarta: ANDI Offset, 2012. Text.

Gaya MLA

Udoyono, Bambang. English Conversation For Customer Service And Sales Promotion Staff. 1st ed. Yogyakarta: ANDI Offset, 2012. Text.

Gaya Turabian

Udoyono, Bambang. English Conversation For Customer Service And Sales Promotion Staff. 1st ed. Yogyakarta: ANDI Offset, 2012. Print.