APA Style
DAVIES,Susan. (1990).
Business english 1 .
Jakarta:
Binarupa Aksara.
Chicago Style
DAVIES,Susan.
Business english 1.
Jakarta:
Binarupa Aksara,
1990.
Text.
MLA Style
DAVIES,Susan.
Business english 1.
Jakarta:
Binarupa Aksara,
1990.
Text.
Turabian Style
DAVIES,Susan.
Business english 1.
Jakarta:
Binarupa Aksara,
1990.
Print.