Gaya APA
Todd, P, C, -, V. (2008).
Prepare For IELTS : General Training Practice Tests .
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Todd, Penny, Cameron, -, Vanessa.
"Prepare For IELTS : General Training Practice Tests".
Jakarta:
Gramedia Pustaka Utama,
2008.
CD-ROM.