Gaya APA
Syilphid 4. (2003).
Jakarta:
Elex Media Computindo.
Gaya Chicago
Syilphid 4.
2003.
Jakarta:
Elex Media Computindo,
2003.
Text.
Gaya MLA
Syilphid 4.
2003.
Jakarta:
Elex Media Computindo,
2003.
Text.
Gaya Turabian
Syilphid 4.
Jakarta:
Elex Media Computindo,
2003.
Print.