International Yoga Federation----  http://www.internationalyogafederation.net

International Yoga Sports Federation--- http://www.yogasports.org

European Yoga Federation--- http://www.europeanyogafederation.net

European Federation of Yoga and Yogatherapy--- http://www.europeanfederationofyoga.org

European Yoga Alliance--- http://www.europeanyogaalliance.org

Committe of Argentina and Olympic Academy of Argentina---http://www.coarg.org

Iyengar Institute in India--- http://www.bksiyengar.com