Tanaka, Ken
World's four great investors
Elex Media Komputindo , 2007
 Buku Teks
Malof, David
The great world / David Malouf
Chatto & Windus, 1990
 Buku Teks
Great books of the western world
editor in chief, Mortimer J. Adler
Encyclopedia Britanica, 1990
 Buku Referensi
Preston, Antony
The world`s great aircraft carriers
Chancellor Press , 1999
 Buku Referensi
Great books of the western world
editor in cheief, Mortimer J. Adler
Encyclopedia Britanica, 1996
 Buku Referensi