Gaya APA
De Vaus, D.A.. (1991).
Survey in Social Research (Ed. 3, Cet. 1).
Sydney:
Allen & Unwin Pty.
Gaya Chicago
De Vaus, D.A..
Survey in Social Research.
Ed. 3, Cet. 1
Sydney:
Allen & Unwin Pty,
1991.
Textbook.
Gaya MLA
De Vaus, D.A..
Survey in Social Research.
Ed. 3, Cet. 1
Sydney:
Allen & Unwin Pty,
1991.
Textbook.
Gaya Turabian
De Vaus, D.A..
Survey in Social Research.
Ed. 3, Cet. 1
Sydney:
Allen & Unwin Pty,
1991.
Textbook.