JohnsonJ.SarasonI.Life stress, depression and anxiety: internal-external control as a moderator variable. Journal of Psychosomatic Research, 1978, 22, 205–208.
2.
RussellD.PeplauL.FergusonM.Developing a measure of loneliness. Journal of Personality Assessment, 1978, 42, 290–292.
3.
WeiderA.WolffH.BrodmanK.MittelmannB.WechslerD.The Cornell Medical Index, Manual Form N-2. New York: Psychological Corp., 1949.
