Gaya APA
Research Methods in Psychology. (1997).
Singapore:
McGraw-Hill.
Gaya Chicago
Research Methods in Psychology.
.
Singapore:
McGraw-Hill,
1997.
Text.
Gaya MLA
Research Methods in Psychology.
.
Singapore:
McGraw-Hill,
1997.
Text.
Gaya Turabian
Research Methods in Psychology.
Singapore:
McGraw-Hill,
1997.
Print.