1. Poverty, unemployment, and common mental disorders: population based cohort study
2. U.S. Department of Labor. (1999b). Employment status of the civilian noninstitutional population, 1935 to date. Retrieved November 17, 1999, from the world wide web:
3. U.S. Department of Labor (1998). Displaced worker summary: Worker displacement, 1995–1997. Retrieved March 23, 2000 from the world wide web:
4. The Impact of Re-Engineering and Other Cost Reduction Strategies on the Staff of a Large Teaching Hospital
5. Unemployment: Its psychological costs;Winefield;International Review of Industrial and Organizational Psychology,1995