WASET
    Su-Hyun Cho and  Chang-U Chae,  A Comparative Study on the Impact of Global Warming of Applying Low Carbon Factor Concrete Products.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2015, vol. 99(3). 256 - 262
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10000689.