1. Ainsworth, M. D. S. , Blehar, M. C. , Waters, E. , & Wall, S. (1978). Patterns of attachment: A psychological study of the strange situation. Lawrence Erlbaum.
2. Linguistic Input, Electronic Media, and Communication Outcomes of Toddlers With Hearing Loss
3. American National Standards Institute. (2004). Methods for manual pure-tone threshold audiometry (ANSI S3.21-2004 R2009).
4. American National Standards Institute. (2010). Specifications for audiometers (ANSI 3.6-2010).
5. Father-child play: A systematic review of its frequency, characteristics and potential impact on children’s development