Gaya APA
Puchta, Claudia, Potter, Jonathan. (2004).
Focus group practice .
London:
Sage Publications.
Gaya Chicago
Puchta, Claudia, Potter, Jonathan.
Focus group practice.
London:
Sage Publications,
2004.
Buku.
Gaya MLA
Puchta, Claudia, Potter, Jonathan.
Focus group practice.
London:
Sage Publications,
2004.
Buku.
Gaya Turabian
Puchta, Claudia, Potter, Jonathan.
Focus group practice.
London:
Sage Publications,
2004.
Buku.