==References====External links==* "Top 10: Criminal Organizations, No.2 Yamaguchi-gumi" (with a picture)* Guardian article* Japan Times article* BBC News - Japanese yakuza boss goes to jail* Kenichi Shinoda - russian version
* «Top 10: Criminal Organizations, No.2 Yamaguchi-gumi» (with a picture)* Guardian article* Japan Times article* BBC News — Japanese yakuza boss goes to jail