Sandbrook, Claire, author
Sweet & Maxwell , 2011
Buku Teks
Brown, James J., author
John Wiley & Sons, 1994
Buku Teks
Jackson, D.C., author
LLP, 2005
Buku Teks
Slesser, Henry
Stevens and Sons Limited, 1962
Buku Teks
Elton, G. R. (Geoffrey Rudolph), author
Cambridge University Press, 1972
Buku Teks