Gaya APA
SPSS/PC+: advanced statistics. (1985).
Chicago:
SPSS Inc..
Gaya Chicago
SPSS/PC+: advanced statistics.
.
Chicago:
SPSS Inc.,
1985.
Buku.
Gaya MLA
SPSS/PC+: advanced statistics.
.
Chicago:
SPSS Inc.,
1985.
Buku.
Gaya Turabian
SPSS/PC+: advanced statistics.
Chicago:
SPSS Inc.,
1985.
Buku.