Radzinowicz, Sir Leon
Routledge, 1999.
Buku Teks
McGraw-Hill Boook Company, 1954
Buku Teks
Gladwell, Malcolm, 1963-, author
Brown and Co, 2009
Buku Teks
Bellow, Saul, author
Random House, 1995
Buku Teks
Brannigan, Gary G., author
Prentice-Hall, 2000
Buku Teks