Ninehills media limited, 2015
Majalah, Jurnal, Buletin
Sweet & Maxwell ,
Majalah, Jurnal, Buletin
The Law and Society Association, 2002
Majalah, Jurnal, Buletin
Lowe, G.B., author
South-Western Publishing, 1983
Buku Teks
Thompson, George C., author
Wadsworth, 1965
Buku Teks