Gaya APA
Babbie, Earl. (2007).
The Practice of Social Research (Ed. 11).
Australia:
Thomson Wadsworth.
Gaya Chicago
Babbie, Earl.
The Practice of Social Research.
Ed. 11
Australia:
Thomson Wadsworth,
2007.
Buku.
Gaya MLA
Babbie, Earl.
The Practice of Social Research.
Ed. 11
Australia:
Thomson Wadsworth,
2007.
Buku.
Gaya Turabian
Babbie, Earl.
The Practice of Social Research.
Ed. 11
Australia:
Thomson Wadsworth,
2007.
Buku.