1. Hospital staffing, organization and quality of care: cross-national findings;Aiken;Nursing Outlook,2002
2. Council for Gender Equality of the Cabinet Office 2006 Expert Panel on Low Birthrate and Gender Equality Briefing Report on Effects of Work-Life Balance Promotion on Private Companies http://www.gender.go.jp/danjo-kaigi/syosika/houkoku/work-honbun.pdf
3. Council for Gender Equality of the Cabinet Office 2008 The Survey of Work Life Balance, Life Planning http://www8.cao.go.jp/survey/tokubetu/h20/h20-wlb.pdf
4. Council for Gender Equality Bureau of the Cabinet Office 2009 The Survey on the Life Planning of Men and Women http://www.gender.go.jp/danjo-kaigi/syosika/g-work.pdf
5. Expert Panel on Low Birthrate and Gender Equality 2006 Report on Effects of Work-Life Balance Promotion on Private Companies 20 23