Etzioni, Amitai
A Touchestone Book, 1994
Buku Teks
Apgar, Mahlon
McGraw-Hill, 1976
Buku Teks
John E. Tropman, John L. Erlich, Jack Rothman
F.E.Peacock, 2001
Buku Teks
edited by John E. Tropman, John L. Erlich, Jack Rothman
F.E.Peacock, 1995
Buku Teks
Redfield, Robert
The University of Chicago Press, 1962
Buku Teks