5Cohen,S.,& Mckay,G (1984).Social support,stress and the buffering hypothesis:A theoretical analysis[J].Handbook of psychology and health,Vol.4,pp.253-263.
6Furman,Wyndol,Duane.Age and Sex Differences in Perceptions of Networks of Personal Relationship[J].Child Development,Chicago; Feb 1992,Vol.63.Iss.1:103-116.