Corbin, Arthur Linton, 1874-1967, author
West Publishing, 1950
Buku Teks
Bix, Brian H., author
Cambridge University Press, 2012
Buku Teks
edited by Walter S. Root and Frederick G. Hofmann
Academic Press, 1987
Buku Teks
Oppenheim, L., author
Longmas, Green, 1952
Buku Teks
compiled and edited by M.Cherif Bassiouni and Ved P. Nanda
Charles C. Thomas, 1973
Buku Teks