Pettit, Philip H.
English Language Book Society , 1985
Buku Teks
Hudson, Alastair, author
Cavendish Publishing Limited, 2003
Buku Teks
Heydon, J.D.
Butterworth, 1993
Buku Teks
Penner, J. E. (James E.), author
Oxford University Press, 2016
Buku Teks
Haley, Michael, author
Sweet and Maxwell, 2007
Buku Teks