Anderson, David A., author
Taylor & Francis Group, 2014
Buku Teks
Heady, Earl O., author
Prentice-Hall, 1952
Buku Teks
Barlowe, Raleigh, author
Prentice-Hall, 1961
Buku Teks
Common, Michael
Addison Wesley Longman, 1996
Buku Teks
Ismail Suny, author
Badan Pebinaan Hukum Nasional, 2004
Buku Teks