1. Cannon, W.B. 1935. Stresses and strains of homeostasis. Amer. J. Med. Sci. 189:1–14.
2. Selye, H. 1976. Stress in Health and Disease. Butter-worths: Boston.
3. Selye, H. 1950. The Physiology and Pathology of Exposure to Stress. Acta, Montreal.
4. Mason, J.W. 1971. A re-evaluation of the concept of nonspecificity in stress theory. J. Psychiat. Res. 8:323–333.
5. Elliot, G.R., Eisdorfer, C. 1982. Stress and Human Health: Analysis and Implications of Research. Springer Publishing Company, New York.