WASET
    Tarek M. Alguhane and  Ayman H. Khalil and  M. N. Fayed and  Ayman M. Ismail,  Ambient Vibration Testing of Existing Buildings in Madinah.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2015, vol. 99(3). 310 - 315
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10000856.