Gaya APA
Riyanto, S.
(2009).
English for your Better Future : Speak English, Please 2
(
2)
.
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"English for your Better Future : Speak English, Please 2".
2
Yogyakarta:
Pustaka Pelajar,
2009.
Text.