“Heavy metal concentration and bacterial load on Spinach (Spinacia oleracea L.) phyllosphere under different regions in Lucknow, Uttar Pradesh”, IJPLS, vol. 4, no. 7, pp. 2823–2827, Jul. 2013, Accessed: Jan. 08, 2026. [Online]. Available: http://ijplsjournal.com/index.php/ijpls/article/view/632