APA Style
Effective Writing. (1992).
Indonesia:
Elex Media Komputindo.
Chicago Style
Effective Writing.
1st edition.
Indonesia:
Elex Media Komputindo,
1992.
Text.
MLA Style
Effective Writing.
1st edition.
Indonesia:
Elex Media Komputindo,
1992.
Text.
Turabian Style
Effective Writing.
Indonesia:
Elex Media Komputindo,
1992.
Print.