Laitos, Jan G.
West Publishing Co., 1992
Buku Teks
Glicksman, Robert L.
West Publishing Co., 1995
Buku Teks
Davies, Jack
West Publishing, 1975
Buku Teks
Wood, William
Percival Marshall, 1949
Buku Teks
edited by Kim Talus
UK Edward Elgar, 2014
Buku Teks