9Andresen E. M. ,Malmgren J. A., & Carter W. B. (1994). Screening for depression in well older adults: Evaluation of a short form of the CES-D ( Center for Epidemiologic Studies Depression Scale ). A merican Journal of Preventive Medicine, 10 ( 2 ) , 77 - 84.
10Beavers,R. ,& Hampson,R. B. (2000). The Beavers systems model of family functioning. Journal of Family Therapy,22(2) ,128 - 143.