1-Roeser, R.J. (2013). Rooser’s Audiology Desk Reference. 2nd Edition, Thieme,Jerger, J., Mueller H. G. (2014) Audiology: Science to Practice.2nd Edition. Plural Publishing
2- Inc.,Hall, J. W. III. (2014) Introduction to Audiology Today. Pearson.
3- Hall, J. W. III. (2014) Introduction to Audiology Today. Pearson.