Gaya APA
Riyanto, S. (2011).
Easy TOEIC (Test of English for International Communication) .
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"Easy TOEIC (Test of English for International Communication)".
Yogyakarta:
Pustaka Pelajar,
2011.
Book.