SIMULTANEOUS QUANTIFICATION OF DIOSGENIN, OLEIC ACID, HARMINE AND KAEMPFEROL BY RP-HPLC IN THE FRUIT EXTRACT OF TRIBULUS TERRESTRIS L. AND ITS FORMULATION - Vikas V. Vaidya, Prakash L. Kondalkar*, Pushkar M. Pradhan, Sulekha R. Gotmare (2018)