1. Karasek R and Theorell T. Healthy work: stress, productivity and the reconstruction of working life.NY: Basic Books, 1990.
2. Shumaker A S and Czajkowski S M.Social support and cardiovascular disease. New York: Plenum Press, 1994.
3. de Lange A. What about causality? Examining longitudinal relations between work characteristics and mental health.PhD Dissertation. University of Nijmegen, 2005.
4. Heckscher C. White collar blues: management loyalties in the age of corporate restructuring.New York: Basic Books, 1995.
5. Quinlan M and Mayhew C. Precarious employment, work re-organisation and the fracturing of OHS management. In: Frick K, Jensen P, Quinlan M and Wilthagen T (eds).Systematic occupational health and safety management: perspectives on an international development. Oxford: Pergamon, 2000: 175–198.