Reference
Books:
1. Muncaster, Roger. A-Level Physics. New York: Hyperion Books, 1997.
2. Poynting, JH. A Text Book of Physics. City: Munshi Press, 2007.
Webliography
1. academia.hixie.ch/bath/Thermal/home.html
2. media.uws.ac.uk/~davison/labpage/leedisk/leedisk.html