Gaya APA

Rooy, R, D. (2010). Prepare for Ielts skills and Strategies:Book One listening and Speaking (Cet.2). Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Rooy, Rae, De. "Prepare for Ielts skills and Strategies:Book One listening and Speaking". Cet.2 Jakarta: Gramedia Pustaka Utama, 2010. Text.