APA Style
Business English. (1981).
Indonesia:
Elex Media Komputindo.
Chicago Style
Business English.
1st edition.
Indonesia:
Elex Media Komputindo,
1981.
Text.
MLA Style
Business English.
1st edition.
Indonesia:
Elex Media Komputindo,
1981.
Text.
Turabian Style
Business English.
Indonesia:
Elex Media Komputindo,
1981.
Print.