1. Kirtikar and BasuIndian Medicinal Plants, 2nd edition, Vol. 2, p. 1370.
2. Hilditch, T. P., and Riley, J. P.,J. Soc. hem. CInd., 1945,64, 204.
3. Baughman, W. F., and Jamieson, G. S.J. Amer. Chem. Soc., 1922,44, 2952.
4. Pieraerts, J.Mat. Grasses, 1925,17, 7280, 7340.
5. Eibner, A.Farbe u. Lack, 1926,31, 463, 472.