Abrami, Philip C.
Allyn and Bacon, 2001
Buku Teks
Aron, Arthur
Prentice-Hall, 1997
Buku Teks SO
Woodside, Arch G.
Emerald, 2017
eBooks
[edited by] Nico Schulte Nordholt, Leontine Visser
V U University Press, 1995
Buku Teks SO
edited by R. Duncan Luce, Neil J. Smelser, Dean R. Gerstein
Russell Sage Foundation , 1989
Buku Teks SO