Gaya APA
Riyanto, S.
(2008).
A quick and effective strategy to prepare the TOEFL test
.
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"A quick and effective strategy to prepare the TOEFL test".
Yogyakarta:
Pustaka Pelajar,
2008.
Text.