Chaturvedula, V. S. P., and I. Prakash. “Utilization of RP-HPLC Fingerprinting Analysis for the Identification of Diterpene Glycosides from Stevia Rebaudiana”. International Journal of Research in Phytochemistry and Pharmacology, Vol. 1, no. 2, Apr. 2011, pp. 88-92, https://scienztech.org/index.php/ijrpp/article/view/748.