Pancha Bhootas from SKY (Vethathri Maharishi)
http://www.skysociety.org.sg/articles/article7.htm
Ayurveda five elements
http://75.126.84.8/ayurveda/ayurveda/five-elements.asp?nm2=The%20Five%20Elements
http://www.dirah.org/ayurveda.htm
http://satyavidya.com/shatarasa.htm
