Galeano R. Katherine and  Rincon L. David and  Luengas C. Lely,  Electronic Tool that Helps in Learning How to Play a Flute.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2009, vol. 34(10). 1880 - 1882
    [viewed 27 January 2020]. Available from: https://publications.waset.org/pdf/2622.