NARENDHIRAKANNAN R.T, and LIMMY T.P. 2010. “In Vitro Antioxidant Studies on Ethanolic Extracts of Leaf, Stem and Root of Sida Rhombifolia L”. International Journal of Pharma and Bio Sciences 1 (2):1-10. https://ijpbs.net/index.php/journal/article/view/475.