In-Vitro Anti-Oxidant Activity and Gas Chromatography–Mass Spectrometry Analysis of Methanolic Extracts of Saussurea Lappa Clarke and Premna Mucronata Roxb. Int. J. Pharm. Sci. Drug Res. 2022, 14 (6), 788-798. https://doi.org/10.25004/IJPSDR.2022.140617.