1. Diseases of the External Ear. An Otologic-Dermatologic Manual;Senturia,1980
2. The Human Ear Canal;Perry,1957
3. Microbiological studies of the bacterial flora of the external auditory canal in children;Brook;Acta Otolaryngol (Stockh),1981
4. Clinical and microbiological features of otitis externa;Hawke;J Otolaryngol,1984
5. External otitis;Linstrom,1990