Maher, F.K.H. (Francis Kevin Heathcote)
Law Book Company, 1971
Buku Teks SO
Hall, Kermit L.
Oxford University Press, 1991
Buku Teks SO
Jones, Harry W.
Foundation Press, 1980
Buku Teks SO
Dean, Meryll
Cavendish Publishing Limited, 2002
Buku Teks SO
Hahn, Elliott J.
Quorum Books, 1984
Buku Teks