Murdoch, James
A history of Japan
Routledge and Kegan Paul, 1949
 Buku Teks SO
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 SO
Sansom, George Bailey, Sir, 1883-1965
A history of Japan
Charles E. Tuttle, 1987
 Buku Teks SO