Gaya APA
Babbie, Earl. (1983).
The practice of social research (3e).
Belmont, Calif:
Wadsworth.
Gaya Chicago
Babbie, Earl.
The practice of social research.
3e
Belmont, Calif:
Wadsworth,
1983.
Buku.
Gaya MLA
Babbie, Earl.
The practice of social research.
3e
Belmont, Calif:
Wadsworth,
1983.
Buku.
Gaya Turabian
Babbie, Earl.
The practice of social research.
3e
Belmont, Calif:
Wadsworth,
1983.
Buku.