Penggayaan APA
KRUEGER, Richard A.. (1988).
Focus groups : .
London:
SAGE Publications.
Chicago Style
KRUEGER, Richard A..
Focus groups :.
London:
SAGE Publications,
1988.
Buku.
MLA Style
KRUEGER, Richard A..
Focus groups :.
London:
SAGE Publications,
1988.
Buku.
Turabian Style
KRUEGER, Richard A..
Focus groups :.
London:
SAGE Publications,
1988.
Buku.