Gaya APA
Riyanto, Slamet. (2009).
TOICE preparation .
Yogyakarta:
Pustaka Pelajar.
Gaya Chicago
Riyanto, Slamet.
TOICE preparation.
Yogyakarta:
Pustaka Pelajar,
2009.
Text.
Gaya MLA
Riyanto, Slamet.
TOICE preparation.
Yogyakarta:
Pustaka Pelajar,
2009.
Text.
Gaya Turabian
Riyanto, Slamet.
TOICE preparation.
Yogyakarta:
Pustaka Pelajar,
2009.
Print.