Sage Publications, 2018
Majalah, Jurnal, Buletin
Cambridge University Press, 1996
Buku Teks
edited by Michael Tonry
The University of Chicago Press, 1993
Buku Teks
Giallombardo, Rose, author
John Wiley & Sons, 1982
Buku Teks
Trojanowicz, Robert C., 1941-, author
Prentice-Hall, 1987
Buku Teks