N. GARG, A. K. SINHA, M. DAHIYA, V. GANDHI, R. M. BHARDWAJ, and A. B. AKOLKAR, “Evaluation and Analysis of Environmental Noise Pollution in Seven Major Cities of India”, Arch. Acoust., vol. 42, no. 2, pp. 175–188, Apr. 2017, doi: 10.1515/aoa-2017-0020.