Mohan, U. ., Singh, R. ., Singh, P. ., N., S., Prusty, P. K. ., Tyagi, V. . and K., S. (2014) “Determination of Zn, Cd, Pb and Cu metals in ground water of District Hapur, Uttar Pradesh (India) by anodic stripping voltammetric technique”, Environment Conservation Journal, 15(1&2), pp. 195–199. doi: 10.36953/ECJ.2014.151226.