Great books of the western world : 32 John Milton
Robert Maynard Hutchins, editor in chief
Encyclopaedia Britannica, Inc., 1952
 Buku Referensi
Winton, Tim
The riders
PAN Macmillan, 1994
 Buku Teks
Johnson, Elmer D.
History of libraries in the Western World
The Scarecrow Press, 1970
 Buku Teks
Sansom, George Bailey, Sir, 1883-1965
The western world and Japan
The Gresset Press, 1950;1950;1950
 Buku Teks
Cheney, L.J
A History of the Western world
The New American Library , 1959
 Buku Teks