Gaya APA
Champion 5. (1995).
Jakarta:
Elex Media Computindo.
Gaya Chicago
Champion 5.
1995.
Jakarta:
Elex Media Computindo,
1995.
Text.
Gaya MLA
Champion 5.
1995.
Jakarta:
Elex Media Computindo,
1995.
Text.
Gaya Turabian
Champion 5.
Jakarta:
Elex Media Computindo,
1995.
Print.