Gaya APA
Morgan, D, L., Barbour, R, S. (2017).
A New Era in Focus Group Research (1st ed.).
London:
Palgrave Macmillan.
Gaya MLA
Morgan, David, L.., Barbour, Rosaline, S..
"A New Era in Focus Group Research".
1st ed.
London:
Palgrave Macmillan,
2017.
E Book.