Gaya APA

Saifuddin, I, A. (2005). Belajar IELTS International English Language Testing System Mudah dan Praktis . Westport, Conn.: Penerbit Think Jogjakarta.

Gaya MLA

Saifuddin, Irham, Ali. "Belajar IELTS International English Language Testing System Mudah dan Praktis". Westport, Conn.: Penerbit Think Jogjakarta, 2005. Text.