Kuper, Adam, author
Pica Press, 1973
Buku Teks
Murphy, Robert F., author
George Allen and Unwin, 1972
Buku Teks
Clifford, James, 1945-, author
Harvard University Press, 1988
Buku Teks
Jennings, Jesse D., author
McGraw-Hill, 1972
Buku Teks
Eriksen, Thomas Hylland, author
Pluto Press, 2001
Buku Teks