Shrestha, I., Shrestha, B. L., Pokharel, M., Amatya, R. C. M. and Karki, D. R. (2012) “Prevalance of Noise Induced Hearing Loss among Traffic Police Personnel of Kathmandu Metropolitan City”, Kathmandu University Medical Journal, 9(4), pp. 274–278. doi: 10.3126/kumj.v9i4.6343.