1. NISA finite element software, version 95, 1995, Engineering Mechanics Research Corporation, Michigan, USA.
2. Incopera, Frank P., 1985, Intoduction to Heat Transfer, Wiley and Sons, New York.
3. Perry, J. H., 1973, Chemical Engineering Handbook, 5th ed., McGraw Hill, New York, pp. 10, 11.
4. Radiation Atlas of India, Director General of Metrology, Government of India, India Meteorological Department, New Delhi, India.