[1]
Prasad P.M.N., Shyam Sundar E., Hanuman Reddy V., Chenna Krishna Reddy R., and Rami Reddy Y.V., “Comparative studies on arsenic, nickel & lead levels in ambient air repairable suspended particulate matter (p.m10) in and around Tirupati”, Int. J. Res. Pharm. Sci., vol. 4, no. 2, pp. 118–122, May 2013.