1. W. C. Hinds, Aerosol technology, John Wiley & Sons, New York, USA (1999).
2. P. Intra and N. Tippayawong, Mj. Int. J. Sci. Technol., 1, 120 (2007).
3. T. Johnson, S. Kaufman and A. Medved, 6 th Int. ETH Conference Nanoparticle Measurement, Zurich, Switzerland, 19–21 August (2002).
4. J. Wei, Development of a method for measuring surface area concentration of ultrafine particles, D. Eng. Thesis, University of Duisburg-Essen, Germany (2007).
5. P. Intra and N. Tippayawong, J. Japan Soc. Applied Electromagnet. Mech., 17, s17 (2009).