WASET
    Ashish Kumar and  Sanjeev Kumar Suman,  Experimental Investigations on Nanoclay  (Cloisite-15A) Modified Bitumen.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 122(2). 172 - 177
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/10006414.