Epstein, David G.
West Publishing Company, 1976
Buku Teks
Maraist, Frank L.
West, A Thomson Reuters Business, 2010
Buku Teks
Dobbyn, John F.
West Publishing, 1996
Buku Teks
Miller, Arthur S.
West Publishing, 1977
Buku Teks SO
Williams, Jerre S.
West Publishing, 1979
Buku Teks SO