Gaya APA

Sarwono, J., Purwanto, Y. (2013). English for academic purposes: a successful way to learn scientific english (1). Yogyakarta: Andi.

Gaya MLA

Sarwono, Jonathan., Purwanto, Yudhy. "English for academic purposes: a successful way to learn scientific english". 1 Yogyakarta: Andi, 2013. Text.