Air Pollutant Effect In Ujjain Due To Anthropogenic Activity With Special Reference To Pre And Post Covid. International Journal of Multidisciplinary Engineering In Current Research, [S. l.], v. 9, n. 3, p. 25–38, 2023. Disponível em: https://ijmec.com/index.php/multidisciplinary/article/view/577. Acesso em: 24 jun. 2025.