Ahmed A. Elshami and  St├ęphanie Bonnet and  Abdelhafid Khelidj,  Zamzam Water as Corrosion Inhibitor for Steel Rebar in Rainwater and Simulated Acid Rain.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 93(9). 1047 - 1051
    [viewed 14 December 2019]. Available from: https://publications.waset.org/pdf/10000125.