Penggayaan APA
DEVELLIS, Robert F.. (1991).
Scale development: .
London:
SAGE Publications.
Chicago Style
DEVELLIS, Robert F..
Scale development:.
London:
SAGE Publications,
1991.
Buku.
MLA Style
DEVELLIS, Robert F..
Scale development:.
London:
SAGE Publications,
1991.
Buku.
Turabian Style
DEVELLIS, Robert F..
Scale development:.
London:
SAGE Publications,
1991.
Buku.