Schwartz, Bernard, author
Clarendon Press Oxford, 1972
Buku Teks
Ivamy, E.R. Hardy
Butterworth, 1980
Buku Teks
Jaffe, Louis L., author
Little, Brown, 1972
Buku Teks
Winfield, P.H.
Sweet & Maxwell, Limited, 1948
Buku Teks
Mashaw, Jerry L, author
Thomson/West, 2009
Buku Teks