Gaya APA
Riyanto, S., Nh., E.
(2008).
Developing listening skills for the toeic test
.
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet., Nh., Emilia.
"Developing listening skills for the toeic test".
Yogyakarta:
Pustaka Pelajar,
2008.
Text.