Document Type : research article
. (2018). . Journal of Vibration and Sound, 6(12), 135–139.
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. (2018). '', Journal of Vibration and Sound, 6(12), pp. 135–139.
, "." Journal of Vibration and Sound, 6 12 (2018): 135–139,
. . JVS. 2018;6(12):135–139 (In Persian).