Worrell, Ernst, editor
Elsevier, 2014
eBooks
Charlton, Ruth, author
Lawbook, 2004
Buku Teks
edited by Frederick C. Allard
McGraw-Hill, 1990
Buku Referensi
edited by Frederick C. Allard
McGraw-Hill, 1989
Buku Referensi
Kurtz, Max, author
McGraw-Hill, 1991
Buku Referensi