1. Dymock, W.; Warden, C. J. H.; Hooper, D.Pharmacographia Indica; Hamdard National Foundation: Pakistan, 1977; Vol. 1, p 89.
2. Manjunath, B. L.The Wealth of India; Council of Scientific and Industrial Research: New Delhi, 1948; Vol. 1, p 140.
3. Pruthi, H. S.Report of the Imperial Entomologist;Agricultural Research Institute: New Delhi, 1937; pp 1935−36.