1. Chopra R. N., Nayar S. L., Chopra I. C. Glossary of Indian Medicinal Plants. C.S.I.R., New Delhi 1956; 103
2. Clarke C. B. Flora of British India, J. D. Hooker. L. Reeve & Co., London 1885; IV: 544–45
3. Jane F. W. The structure of wood. Adam & Charles Black, London 1955; 122
4. Kirtikar K. R., Basu B. D. Indian Medicinal Plants. Parini Office, Bhuwaneswar Ashrama, Bhadurgong, Allahabad 1935; Vol. II: 979