GUPTA, A. . Temporal variation and prediction of air pollution: A case study of Ludhiana City. International Journal of Technical Innovation in Modern Engineering & Science, [S. l.], v. 5, n. 7, p. 35–40, 2019. Disponível em: https://ijtimes.com/index.php/ijtimes/article/view/929. Acesso em: 22 dec. 2024.