Duerden, C.
Noise abatement
Philosophical Library, 1970
 Buku Teks SO
Bentham, Jeremy
The principles of morals and legislation
Prometheus Books, 1988
 Buku Teks SO
Blackstone's EC legislation
edited by Nigel G. Foster
Blackstone Press Limited, 1990
 Buku Referensi
Twomey, David P.
Labor law and legislation
South-Western Pub, 1985
 Buku Teks
Hogan, John D.
American social legislation
Harper & Brothers, 1956
 Buku Teks