1. American Academy of Audiology. (2011 September). American Academy of Audiology clinical practice guidelines: Childhood hearing screening. Retrieved from www.audiology.org/resources/documentlibrary/Documents/ChildhoodScreeningGuidelines.pdf
2. The neglected ones: Children of undocumented immigrants seldom receive the services they need;Arnold R.;School Library Journal,2012
3. Center for Hearing and Communication. (2013). Facts about hearing loss. Retrieved from www.chchearing.org/about-hearing-loss/facts-about-hearing-loss
4. A large-scale newborn hearing screening in rural areas in China