Gaya APA
Riyanto, S.
(2011).
Daily English Words
(
Cet.1)
.
Yogyakarta:
Pustaka Widyatama.
Gaya MLA
Riyanto, Slamet.
"Daily English Words".
Cet.1
Yogyakarta:
Pustaka Widyatama,
2011.
Text.