1. TTSA Guidelines for Hearing Aid Direct Referrals. British Association of Audiological Scientists;Bamford;News-letter,1988
2. Time for Radical Change;Jackson;Soundbarrier,1988
3. Lim D. and Stephens S. D. G. (1985) Clinical investigation of hearing loss in the elderly. Data presented at British Society of Audiology Meeting York July 1985.