Smart, Terry L., author
World history a story of progress
Holt, Reinhart and Winston, 1987
 Buku Teks
Johnson, Elmer D., author
History of libraries in the Western World
The Scarecrow Press, 1970
 Buku Teks
Palmer, R.R. (Robert Roswell), 1909-2002, author
A history of the modern world
McGraw-Hill, 1950
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Philip's atlas of world history
London Chancellor Press 1999,
 Buku Referensi
Philips, author
Atlas of world history
Chancellor Press, 1999
 Buku Referensi