Gaya APA

Setyarini, S., Sulistyo, U. (2007). Succesful English For Business: Develop your Speaking Skill in the Business (I). Yogyakarta: Andi.

Gaya MLA

Setyarini, Susana., Sulistyo, Ule. "Succesful English For Business: Develop your Speaking Skill in the Business". I Yogyakarta: Andi, 2007. Text.