1) Dr. Jha Pitamber, “Yoga Parichay,” Gupta Parakashan, New Delhi, 1989
2) Iyengar, BKS, ed “ Light on yoga”, New York: NY: Schocken Books: 1995
3) Kochar, H.C “Light on Yoga Practice” Yoga Mimansa.XV.
4) Karambeikar, P.V Pantanjali Yoga Sutra, Lonavla, Kalvalyadhama SMYM Samiti,1984.
Websites Referred:
www.divyayurvedaezine.com
www.google.com
www.binstitute.org