Sujatha Palatheeya et al. 2021. Roll of ethyl acetate soluble fraction of the methanol extract of Plectranthus Vettiveroides in cognitive enhancement and antioxidant activity on scopolamine-induced amnesia. International Journal of Allied Medical Sciences and Clinical Research. 4, 4 (Mar. 2021), 754–763. DOI:https://doi.org/10.61096/ijamscr.v4.iss4.2016.754-763.