Gaya APA
Leo, Sutanto. (2009).
English for academic purpose : essay writing .
Yogyakarta:
Andi Offset.
Gaya Chicago
Leo, Sutanto.
English for academic purpose : essay writing.
Yogyakarta:
Andi Offset,
2009.
Text.
Gaya MLA
Leo, Sutanto.
English for academic purpose : essay writing.
Yogyakarta:
Andi Offset,
2009.
Text.
Gaya Turabian
Leo, Sutanto.
English for academic purpose : essay writing.
Yogyakarta:
Andi Offset,
2009.
Print.