PRASAD P.M.N.; SHYAM SUNDAR E.; HANUMAN REDDY V.; CHENNA KRISHNA REDDY R.; RAMI REDDY Y.V. Comparative studies on arsenic, nickel & lead levels in ambient air repairable suspended particulate matter (p.m10) in and around Tirupati. International Journal of Research in Pharmaceutical Sciences, [S. l.], v. 4, n. 2, p. 118–122, 2013. Disponível em: https://ijrps.com/home/article/view/3570. Acesso em: 21 nov. 2024.