Sueur, AP.Le
Covendish Publishing Limited, 1995
Buku Teks
Thompson, Brian
Balckstone Press Limited, s.a.
Buku Teks
Phillips, O. Hood, author
Sweet & Maxwell, 2001
Buku Teks
De Smith, S.A. (Stanley A.), author
Penguin Books, 1994
Buku Teks
Clancey, Richad, author
Sweet & Maxwell, 2011
Buku Teks