Scott, Austin Wakeman, 1884-1981, author
Little, Brown, 1963
Buku Teks
Cooke, Darryl J., author
Sweet & Maxwell, 2011
Buku Teks
Penner, J. E. (James E.), author
Oxford University Press, 2016
Buku Teks
Hudson, Alastair, author
Cavendish Publishing Limited, 2003
Buku Teks
Rose, Francis, author
Sweet & Maxwell, 1989
Buku Teks