Murdoch, James
A history of Japan
Routledge and Kegan Paul, 1949
 Buku Teks
Maraini, Fosco
Japan patterna of continuity/by Fosco Maraini
Kodansha International, 1976
 Buku Teks
Richard Susilo
Yakuza Indonesia
Kompas, 2013
 Buku Teks
Sansom, George Bailey, Sir, 1883-1965
A history of Japan
Charles E. Tuttle, 1987
 Buku Teks
Reischauer, Edwin O.
Japan past and present
Alfred A. Knopf, 1964
 Buku Teks