BHAVYA D. K, and KRISHNAMOORTHY M. “PRELIMINARY SCREENING OF PHYTOCHEMICAL AND MINERAL CONTENT OF CHLOROFORM AND METHANOL EXTRACTS OF STRYCHNOS NUX VOMICA L AND OPHIORRHIZA RUGOSA WALL”. International Journal of Pharma and Bio Sciences, vol. 5, no. 2, June 2014, pp. 390-5, https://ijpbs.net/index.php/journal/article/view/3485.