Hudson, Alastair
Cavendish Publishing Limited, 2003
Buku Teks
Heydon, J.D.
Butterworth, 1993
Buku Teks SO
Penner, J. E. (James E.)
Oxford University Press, 2016
Buku Teks SO
Haley, Michael
Sweet and Maxwell, 2007
Buku Teks SO
Todd, Paul
London : Balckstone, 1994,
Buku Referensi