WASET
    Hesam Sedaghat Nejad and  Navid Hosseini and  Arash Nikvar Hassani,  Determination of the Optimum Size of Building Stone Blocks: Case Study of Delichai Travertine Mine.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2016, vol. 111(3). 397 - 402
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10006129.