Gaya APA
Fern, Edward F.. (2001).
Advanced focus group research (1st ed).
California:
Sage Publications.
Gaya Chicago
Fern, Edward F..
Advanced focus group research.
1st ed
California:
Sage Publications,
2001.
BUKU.
Gaya MLA
Fern, Edward F..
Advanced focus group research.
1st ed
California:
Sage Publications,
2001.
BUKU.
Gaya Turabian
Fern, Edward F..
Advanced focus group research.
1st ed
California:
Sage Publications,
2001.
BUKU.