Gaya APA

Shymkiw, A., Larbalestier, D. (2007). Study English: IELTS Preparation (Cet. 1 (2007)). Jakarta: Jakarta.Gramedia Pustaka Utama.

Gaya MLA

Shymkiw, Anna., Larbalestier, David. "Study English: IELTS Preparation". Cet. 1 (2007) Jakarta: Jakarta.Gramedia Pustaka Utama, 2007. Referensi.