1. Boszormenyi-Nagy, I., & Krasner, B. R. (1986).Between give & take. New York: Brunner/Mazel.
2. Boszormenyi-Nagy, I., & Spark, G. M. (1973).Invisible loyalties. New York: Brunner/Mazel.
3. Bowen, M. (1978).Family therapy in clinical practice. New York: Jason Aronson.
4. Bowlby, J. (1973).Separation: attachment and loss. New York: Basic Books.
5. Bowlby, J. (1958). The nature of the child's tie to his mother.International Journal of Psycho-Analysis, 39, 350?73.