edited by Gerald D. Berreeman; with the assistance of Kathleen M. Zaretsky
Academic Press, 1981
Buku Teks
Blumberg, Rae Lesser, author
W.M.C. Brown, 1978
Buku Teks
edited by S.N. Eisenstadt
Little, Brown and Company, 1968
Buku Teks
Tumin, Melvin M., author
Prentice-Hall, 1967
Buku Teks
Orum, Anthony M., author
Blackwell, 2003
Buku Teks