1. Parenting Stress Index Short Form;Abidin,1990
2. Patterns of attachment: A psychological study of the strange situation;Ainsworth,1978
3. American Psychiatric Association. (1994). Diagnostic and statistic manual of mental disorders (4th ed.). Washington, DC: Author.
4. Seeking a comfortable fit between family-centered philosophy and infant-parent interaction in early intervention: Time for a paradigm shift?;Baird;Topics in Early Child Special Education,1997
5. The emergence of symbols: Cognition and communication in infancy;Bates,1979