Gaya APA

Training, I, O, E, L. (2016). BUKU PINTAR IELTS International English Language Testing System (Cetakan 8). Jakarta,: PT Bentang Pustaka.

Gaya MLA

Training, Institute, Of, English, Language. "BUKU PINTAR IELTS International English Language Testing System". Cetakan 8 Jakarta,: PT Bentang Pustaka, 2016. Buku Teks.