Gaya APA
Lie, A., Limuil, S. (2001).
Beyond The Classroom : english for academic purposes (Trawas) .
Jakarta:
PT Grasindo.
Gaya MLA
Lie, Anita., Limuil, Sarah.
"Beyond The Classroom : english for academic purposes (Trawas)".
Jakarta:
PT Grasindo,
2001.
Text.