Gaya APA
Belson, William A. (1982).
The Design and understanding of survey questions .
England:
Gower.
Gaya Chicago
Belson, William A.
The Design and understanding of survey questions.
England:
Gower,
1982.
BUKU.
Gaya MLA
Belson, William A.
The Design and understanding of survey questions.
England:
Gower,
1982.
BUKU.
Gaya Turabian
Belson, William A.
The Design and understanding of survey questions.
England:
Gower,
1982.
BUKU.