WASET
    Said M. Easa and  Ahmed Shaker,  Error Propagation of the Hidden-Point Bar Method: Effect of Bar Geometry.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2010, vol. 44(8). 209 - 215
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/14226.