Gaya APA
Riyanto, S. (2014).
English For Your Better Future : Speak English Please 1 (Cet. 4, Agustus 2014).
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"English For Your Better Future : Speak English Please 1".
Cet. 4, Agustus 2014
Yogyakarta:
Pustaka Pelajar,
2014.
Text.