Gaya APA
RIYANTO, Slamet. (2008).
The 1st Student's Choice Toefl Preparation (Ed.2).
Yogyakarta:
Pustaka Pelajar.
Gaya Chicago
RIYANTO, Slamet.
The 1st Student's Choice Toefl Preparation.
Ed.2
Yogyakarta:
Pustaka Pelajar,
2008.
Text.
Gaya MLA
RIYANTO, Slamet.
The 1st Student's Choice Toefl Preparation.
Ed.2
Yogyakarta:
Pustaka Pelajar,
2008.
Text.
Gaya Turabian
RIYANTO, Slamet.
The 1st Student's Choice Toefl Preparation.
Ed.2
Yogyakarta:
Pustaka Pelajar,
2008.
Print.