Garner, Bryan A.
Oxford University Press, 1995
Buku Referensi
Salman, S.L.
S.S. Mubaruk and Brothers, 1994
Buku Teks
Mellinkoff, David
[Publisher not identified], 1992
Buku Teks
London: Tiger Books International, 1994,
Buku Referensi
Harcourt Brace Jovanovich Legal and Professional Publications, 1984
Buku Teks