HARSHAL A DESHPANDE and SANJIVANI R BHALSING, “Phytochemical Analysis Of Cassia Obtusifolia, Cassia Auriculata, Tephrosia Purpurea, Helictres Isora And Centella Asiatica”, ijpbs, vol. 2, no. 3, pp. 364–368, Sep. 2011.