Abdoullah Namdar and  Fadzil Mat Yahaya,  Enhancement of Cement Mortar Mechanical Properties with Replacement of Seashell Powder.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 86(2). 169 - 172
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9997473.