N. GARG, S. KUMAR, C. GAUTAM, V. GANDHI, and N. K. GUPTA, “Evaluation and Analysis of Long-term Environmental Noise Levels in 7 Major Cities of India”, Arch. Acoust., vol. 48, no. 1, pp. 103–126, Feb. 2023, doi: 10.24425/aoa.2023.144265.