Gaya APA
Riyanto, S.
(2012).
The 1 st Student's Choice Idiomatic Expressions In English
.
Yogyakarta:
Andi Offset.
Gaya MLA
Riyanto, Slamet.
"The 1 st Student's Choice Idiomatic Expressions In English".
Yogyakarta:
Andi Offset,
2012.
Buku Tex.