Gaya APA
Riyanto, S. (2011).
English For Your Better Future : Speak English, Please (cet 3).
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"English For Your Better Future : Speak English, Please".
cet 3
Yogyakarta:
Pustaka Pelajar,
2011.
Text.