Gaya APA
Babbie, Earl. (2007).
The Practice of Social Research (8th.ed).
Australia:
Thomson Wadsworth.
Gaya Chicago
Babbie, Earl.
The Practice of Social Research.
8th.ed
Australia:
Thomson Wadsworth,
2007.
Text.
Gaya MLA
Babbie, Earl.
The Practice of Social Research.
8th.ed
Australia:
Thomson Wadsworth,
2007.
Text.
Gaya Turabian
Babbie, Earl.
The Practice of Social Research.
8th.ed
Australia:
Thomson Wadsworth,
2007.
Print.