Gaya APA
Rooy, R, D. (2009).
Prepare For IELTS Skills and Strategies Book One: Listening and Speaking .
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Rooy, Rae, De.
"Prepare For IELTS Skills and Strategies Book One: Listening and Speaking".
Jakarta:
Gramedia Pustaka Utama,
2009.
Buku Tercetak.