Krishan Pal, Manoj Kumar, Anjali, Narayan, and Sheetal Chaudhary. “EFFECT OF SULPHUR DIOXIDE ON PLANT CHLOROPHYLL ON THE FAMILY OF BRASSICACEAE”. International Journal of Pharma Professional’s Research (IJPPR), Vol. 3, no. 2, 1, pp. 521-5, https://ijppronline.com/index.php/IJPPR/article/view/96.