Sendall, Jane, author
Oxford University press, 2014
Buku Teks
Diduck, Alison, author
Butterworth, 2003
Buku Teks
Gary Joseph, Georgina Carson, Phyllis Brodkin, William Abbott, Geuffrey Wells
Carswell, 2011
Buku Referensi
Ahmad Ibrahhim
Malayan Law Journal, 1978
Buku Teks
Bates, Frank
Law Book Co. , 1985
Buku Teks