WASET
    P.Kothai and  P. Prathibha and  I.V.Saradhi and  G.G. Pandit and  V.D. Puranik,  Characterization of Atmospheric Particulate Matter using PIXE Technique.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2009, vol. 27(3). 39 - 42
    [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/850.