1. Joint attention, affect, and culture;Adamson,1995
2. Attachments beyond infancy;Ainsworth;American Psychologist,1989
3. Patterns of attachment: A psychological study of the strange situation;Ainsworth,1978
4. Coordinating attention to people and objects in mother-infant and peer-infant interaction;Bakeman;Child Development,1984
5. Bayley Scales of Infant Development, Second Edition: Manual;Bayley,1993