dihimpun oleh Tim Redaksi Tatanusa
Tatanusa, 1999
Buku Teks
Coutryman, Vern
Lettle, Brown and Company, 1979
Buku Teks
Deane, W. P. (William Patrick), Sir, 1931-, author
Law Book Company, 1968
Buku Teks
West Pub. Co, 1996
Buku Teks
West Publishing, 1993
Buku Referensi