Gaya APA
RIYANTO, S.
(2004).
2500 key words to be good at english: with useful examples
(
Cet.I)
.
:
Pustaka Pelajar.
Gaya MLA
RIYANTO, Slamet.
"2500 key words to be good at english: with useful examples".
Cet.I
:
Pustaka Pelajar,
2004.
Referensi.