Gaya APA
Riyanto, S. et al
(2010).
developing vocabulary skills (books 3)
(
-1)
.
Yogyakarta:
Pustaka Pelaajar.
Gaya MLA
Riyanto, Slamet. et al.
"developing vocabulary skills (books 3)".
-1
Yogyakarta:
Pustaka Pelaajar,
2010.
Text.