1. http://www.abc-of-yoga.com/beginnersguide
2. http://www.healthandyoga.com/
3. Proclamation signed under the leadership of Sri Sri Ravi Shankar".
4. "Striving for a peaceful world through Yoga at International Yoga Summit
5. World Yoga Day 22 February to collect funds for human rights causes
6. Chakraborty SK. “Managerial Transformation by Values: A Corporate Piligrimate” Saga. New Delhi; 1993
7. Sudheer Deshpande, Nagendra H R, Raghuram Nagarathna, A Randomized Control Trial Of The Effect Of Yoga On Gunas (Personality) And Health In Normal Healthy Volunteers, International Journal of Yoga, January 06,2009