1. J. H. Seinfeld, Air pollution: physical and chemical fundamentals, McGraw-Hill, Inc., New York, 1975, p. 2 (ISBN-10: 0070560420)
2. M. Z. Jacobson, Atmospheric pollution: history, science, and regulation, Cambridge University Press, Cambridge, 2002, p. 81 (ISBN-10: 0-521-81171-6)
3. J. H. Seinfeld, S. N. Pandis, Atmospheric chemistry and physics: from air pollution to climate change, 2nd ed., John Wiley&Sons, Inc., Hoboken, NJ, 2006, p. 932 (ISBN-10: 0-471-72018-6)
4. J. M. Wallace, P. V. Hobbs, Atmospheric science: an introductory survey, 2nd ed., Academic Press, London, 2006, p. 162 (ISBN-10: 0-12-732951-X)
5. B. O. Akkoyunlu, PhD Thesis, Marmara University, Istanbul, 2003 (in Turkish)