3Strube M. Statistical analysis and interpretation in a study of prelingually deaf children implanted before five years of age. Ear Hearing 2003; 24(suppl): 15 -23.
4Wald RL, Knutson JF . Deaf cultural identity of adolescents with and without cochlear implants. Aartals Otology Rhinology Laryngology 2000; 185(suppl):87 -.9.
5Humes LE. Issues in evaluating the effectiveness of Hearing aids in the elderly ;What to measure and when. Sendnars in Heating 2002: 22:302 - 14.
6Davis WE. Proportional frequency compression in hearing instruments. Hearing Review 2001: 8:2.
8Alexandra D. A fitting strategy for digital hearing aids based for digital hearing aids based on loudness and sound quality. Scand Audiol 2001; 30(Suppl 52):60-4.
9Snik AF, Hombergen GC. Hearing aid fitting of preschool and primary school children. An evaluation using the insertion gain measurement. Scand Audiol 1993; 22:45 - 50.
10Westwood GF, Bamford J. Probe-tube microphone measures with very young infant : real ear to coupler differences and longitudinal changes in real ear unaided response. Ear Hearing 1995; 16:263 - 73.