Gaya APA

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

Gaya MLA

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