WASET
    C. Worakitjaroenphon and  A. Oonsivilai,  Transfer Function of Piezoelectric Material.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2011, vol. 60(12). 1890 - 1895
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/12139.