Gaya APA

KHOIRUL, A., NAWANG, S. (2015). Speed Ur English (Cet. 1). Yogyakarta: IN AzNa Books.

Gaya MLA

KHOIRUL, Anam., NAWANG, Sawitri. "Speed Ur English". Cet. 1 Yogyakarta: IN AzNa Books, 2015. Text.