Gaya APA
Hartono, Caleb. (1989).
PFS: professional file .
Jakarta:
PT Elex Media Komputindo .
Gaya Chicago
Hartono, Caleb.
PFS: professional file.
Jakarta:
PT Elex Media Komputindo ,
1989.
Text.
Gaya MLA
Hartono, Caleb.
PFS: professional file.
Jakarta:
PT Elex Media Komputindo ,
1989.
Text.
Gaya Turabian
Hartono, Caleb.
PFS: professional file.
Jakarta:
PT Elex Media Komputindo ,
1989.
Print.