Gaya APA

Shymkiw, A., Larbalestier, D. (2010). Study English - IElTS Preraration . Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Shymkiw, Anna., Larbalestier, David. "Study English - IElTS Preraration". Jakarta: PT Gramedia Pustaka Utama, 2010. Text.