Gaya APA
Sutanto, L, D.
(2008).
English For Academic Purposes Essay Writing
(
Cet. I)
.
Yogyakarta:
ANDI.
Gaya MLA
Sutanto, Leo, Dkk,.
"English For Academic Purposes Essay Writing".
Cet. I
Yogyakarta:
ANDI,
2008.
Text.