Gaya APA
Babbie, Earl. (2002).
The basics of social research (2).
USA and Canada:
Thomson Learning, Inc.
Gaya Chicago
Babbie, Earl.
The basics of social research.
2
USA and Canada:
Thomson Learning, Inc,
2002.
Text.
Gaya MLA
Babbie, Earl.
The basics of social research.
2
USA and Canada:
Thomson Learning, Inc,
2002.
Text.
Gaya Turabian
Babbie, Earl.
The basics of social research.
2
USA and Canada:
Thomson Learning, Inc,
2002.
Print.