1. M. Singh, Prime Minister's Speech on Independence Day, 2007, 〈http://www.hindu.com/nic/pmspeech070815.htm〉.
2. Food In Society. Economy, Culture And Geography;Atkins,2001
3. A. Puri, India Today, June 11 2007, p. 3.
4. Transforming the Dry Lands. The Sadguru Story Of Western India;Jagawat,2005
5. Living Planet Report WWF International, Switzerland, 2006.