Mohamed .S .Alazhari and  Milad. M. Al Shebani,  Quality of Concrete of Recent Development Projects in Libya.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2011, vol. 58(10). 505 - 509
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/3351.