5Caplan G. The Family as a Support System. In Caplan G. &Killilea M. ( Eds. ). Support System and Mutual Help: Muhidisciplinary Explorations. New York: Grune&Stratton. 1974.19.
6Cohen. S. & Mckay. G. Social Support, Stress and the Fering Hypothesis: A Theoretical Analysis. Handbook of Psychology and Heath. 1984. (4) :253 -263.
7Sass. J. S. , Mattson, M. When Social Support is Uncomfortable. Management Communication Quarterly. 1999,12 (4) : 511 - 543.
8Barrera M. & Ainlay S. L. The Structure of Social Support: a Conceptual and Empirical Analysis [ J ]. Journal of Community Psychol- ogy. 1983,(11).