Gaya APA

Setyarini, S., Sulistyo, U. (2009). Successful English for Business: Develop your speaking skill in the business (ed. 1). Yogyakarta: ANDI.

Gaya MLA

Setyarini, Susana., Sulistyo, Ule. "Successful English for Business: Develop your speaking skill in the business". ed. 1 Yogyakarta: ANDI, 2009. Text.