Gaya APA

Intanti, H, R, &, M, W. (2017). Master Pocket Ielts (Cet. 4). Yogyakarta: Cemerlang Publishing.

Gaya MLA

Intanti, Haira, Rizka, &, Maulidya, Windha. "Master Pocket Ielts". Cet. 4 Yogyakarta: Cemerlang Publishing, 2017. Text.