APA Style
Sutanto Leo,dkk. (2007).
English For Academic Purpose Essay Writing .
Yogyakarta:
Andi.
Chicago Style
Sutanto Leo,dkk.
English For Academic Purpose Essay Writing.
Yogyakarta:
Andi,
2007.
Text.
MLA Style
Sutanto Leo,dkk.
English For Academic Purpose Essay Writing.
Yogyakarta:
Andi,
2007.
Text.
Turabian Style
Sutanto Leo,dkk.
English For Academic Purpose Essay Writing.
Yogyakarta:
Andi,
2007.
Print.