Gaya APA
SPSS ( statistical Product and Service Solutions). (1999).
Jakarta:
Elex Media Komputindo.
Gaya Chicago
SPSS ( statistical Product and Service Solutions).
.
Jakarta:
Elex Media Komputindo,
1999.
Text.
Gaya MLA
SPSS ( statistical Product and Service Solutions).
.
Jakarta:
Elex Media Komputindo,
1999.
Text.
Gaya Turabian
SPSS ( statistical Product and Service Solutions).
Jakarta:
Elex Media Komputindo,
1999.
Print.