Austin, John
Weidenfeld and Nicolson, 1954
Buku Teks
Austin, John
University Press, 1995
Buku Teks
Curzon, L. B.
CavendishPublishing Limited, 1992
Buku Teks
Wacks, Raymond, author
Blackstone Press limited, 1999
Buku Teks
Suri Ratnapala, author
Cambridge University Press, 2009
Buku Teks