1. Anonymous, The wealth of India, Vol 1, Council of Scientific & Industrial Research, New Delhi (1948) pp 63–65.
2. Kirtikar KR & Basu BD, Indian medicinal plants (B Blater, J F Cains, K S Mhaskar, Editors) Dehradun, India (1935) pp 2227–2229.
3. Motley TJ, Eco Bot, 48 (1994) 397.
4. Harikrishnan KN, Martin KP, Mustafa PH & Molly Hariharan, J Med & Arom Plant Sci, 19 (1997) 427.
5. Murashige T & Skoog F, Physiol Plant, 15 (1962) 473.