Gaya APA
Fern, Edward F.. (2001).
Advanced Focus Group Research .
London:
SAGE.
Gaya Chicago
Fern, Edward F..
Advanced Focus Group Research.
London:
SAGE,
2001.
Teks.
Gaya MLA
Fern, Edward F..
Advanced Focus Group Research.
London:
SAGE,
2001.
Teks.
Gaya Turabian
Fern, Edward F..
Advanced Focus Group Research.
London:
SAGE,
2001.
Teks.