APA Style
Word Perfect 5.0. (1990).
Indonesia:
Elex Media Komputindo.
Chicago Style
Word Perfect 5.0.
1st edition.
Indonesia:
Elex Media Komputindo,
1990.
Text.
MLA Style
Word Perfect 5.0.
1st edition.
Indonesia:
Elex Media Komputindo,
1990.
Text.
Turabian Style
Word Perfect 5.0.
Indonesia:
Elex Media Komputindo,
1990.
Print.