Gaya APA
Riyanto, S.
(2008).
A Quick And Effective Strategy To Prepare The Toefl Test
.
Yogjakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"A Quick And Effective Strategy To Prepare The Toefl Test".
Yogjakarta:
Pustaka Pelajar,
2008.
Buku Tex.