1. The development of mother-infant attachment;Ainsworth,1973
2. Patterns of attachment: A psychological study of the strange situation.;Ainsworth,1978
3. Conflict, arousal, and curiosity.;Berlyne,1960
4. Attachment and loss, Vol. 1: Attachment;Bowlby,1982
5. The HOME Inventory: Rationale and research;Bradley,1985