1. The development of infant-mother interaction among the Ganda;Ainsworth,1963
2. Diagnostic and statistical manual of mental disorders. 4th ed (DSM-IV),1994
3. Attachment and loss, vol. 1. Attachment;Bowlby,1969
4. Attachment and loss, vol. 2. Separation: anxiety and anger;Bowlby,1973
5. Anxiety disorders interview schedule—revised (ADIS-R);DiNardo,1988