1. P.S. Rao, P. Praveen kumar, Achieving Enhanced Specific Performance life at cost Reduction by employing thin film Tech. For Environmental Friendly cooling tower design, , Proceeding of the National conference on World Class manufacturing, Amrita & Institute of Technology, Coimbatore (2003).
2. Jim Wallis & Richard Aull, Improving cooling tower performance with Thermal fills, Brent wood Industries Inc.
3. Green, Don wettd , Perry's chemical Engineers Hand book, 6th edition, Tata MC Graw Hill, (1986).
4. Stolker, Refrigeration and Air Conditioning, Tata McGraw Hill, ( 1998).
5. D.Q. Kern, Process Heat Transfer, Tata McGraw Hill. (1998).