Gaya APA

Sarwono, J., Purwanto, Y. (2013). English For Academic Purposes : A Successful Way to Learn Scientific English (Ed 1 Cet 1). Yogyakarta: Andi.

Gaya MLA

Sarwono, Jonathan., Purwanto, Yudhy. "English For Academic Purposes : A Successful Way to Learn Scientific English". Ed 1 Cet 1 Yogyakarta: Andi, 2013. Text.