Wellem, T., Y. Nataliani, D. Manongga, H. Hendry, D. Utomo, I. K. Timotius, D. D. Kameo, A. Lasso, and W. C. Weku. “Measurement and Analysis of Noise Levels from Loudspeakers on Public Transportation in Kupang, East Nusa Tenggara”. Jurnal Ilmiah Sains, vol. 24, no. 2, Sept. 2024, pp. 133-47, doi:10.35799/jis.v24i2.54820.