Marcham, Frederick George
Harper & Brothers, 1960
Buku Teks
Andrew Ashworth, Alison Macdonald, Ben Emmerson
Sweet & Maxwell , 2012
Buku Teks
Blackstone Press, 1996
Buku Teks
editor-in-Chief L. Crispin Warmington
Butterworth, 1950
Buku Teks
Seeley, J. R.
Macmillan, 1909
Buku Teks