Gaya APA
Sholikhah, I, M. et al
(2007).
English For Academic Purpose: Essay Writing
(
Ed. 1)
.
Yogyakarta:
Andi.
Gaya MLA
Sholikhah, Ika, Maratus. et al.
"English For Academic Purpose: Essay Writing".
Ed. 1
Yogyakarta:
Andi,
2007.
Text.