Parsons, Talcott
The Free Press, 1951
Buku Teks SO
edited by Murray Brown, Kazue Sato and Paul Zarembka
North-Holland Publishing, 1976
Buku Teks
Robertson, D.H.
Staples Press, 1948
Buku Teks
edited by Reavis Cox and Wroe Alderson
Richard D. Irwin, 1950
Buku Teks
Hammond, J.D.
Foresman and Company, 1968
Buku Teks