APA Style
PFS: Professional FILE. (1989).
Jakarta:
PT Elex Media Komputindo.
Chicago Style
PFS: Professional FILE.
.
Jakarta:
PT Elex Media Komputindo,
1989.
Text.
MLA Style
PFS: Professional FILE.
.
Jakarta:
PT Elex Media Komputindo,
1989.
Text.
Turabian Style
PFS: Professional FILE.
Jakarta:
PT Elex Media Komputindo,
1989.
Print.