Shrestha, I., B. L. Shrestha, M. Pokharel, R. C. M. Amatya, and D. R. Karki. “Prevalance of Noise Induced Hearing Loss Among Traffic Police Personnel of Kathmandu Metropolitan City”. Kathmandu University Medical Journal, vol. 9, no. 4, June 2012, pp. 274-8, doi:10.3126/kumj.v9i4.6343.