Gaya APA
Babbie, Earl. (1983).
THE PRACTICE OF SOCIAL RESEARCH (Third Edition).
California:
Wadsworth.
Gaya Chicago
Babbie, Earl.
THE PRACTICE OF SOCIAL RESEARCH.
Third Edition
California:
Wadsworth,
1983.
Text.
Gaya MLA
Babbie, Earl.
THE PRACTICE OF SOCIAL RESEARCH.
Third Edition
California:
Wadsworth,
1983.
Text.
Gaya Turabian
Babbie, Earl.
THE PRACTICE OF SOCIAL RESEARCH.
Third Edition
California:
Wadsworth,
1983.
Print.