Heisei 26-nen zenkoku shōhi jittai chōsa hōkoku / Somusho Tōkeikyoku = 2014 national survey of family income and expenditure / Statistics Bureau Ministry of Internal Affairs and Communications.
平成26年全国消費実態調查報告 / 総務省統計局 = 2014 national survey of family income and expenditure / Statistics Bureau Ministry of Internal Affairs and Communications.