Abdul Baqi and  Zaid Mohammad,  Effect of U-Turn in Reinforced Concrete Dog-Legged Stair Slabs.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2013, vol. 78(6). 479 - 484
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/3289.