Gaya APA
Riyanto, Slamet. (2005).
Gate Way English For Active Communication .
Yogyakarta:
Pustaka Pelajar.
Gaya Chicago
Riyanto, Slamet.
Gate Way English For Active Communication.
Yogyakarta:
Pustaka Pelajar,
2005.
Text.
Gaya MLA
Riyanto, Slamet.
Gate Way English For Active Communication.
Yogyakarta:
Pustaka Pelajar,
2005.
Text.
Gaya Turabian
Riyanto, Slamet.
Gate Way English For Active Communication.
Yogyakarta:
Pustaka Pelajar,
2005.
Print.