Gaya APA
English, I. (2007).
Study English Ielts Preparation Resource Book : Watch Read Do (1).
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
English, Insearch.
"Study English Ielts Preparation Resource Book : Watch Read Do".
1
Jakarta:
Gramedia Pustaka Utama,
2007.
Buku.