WASET
    Shegufta Zahan and  Muhammad A. Zahin and  Muhammad M. Hossain and  Raquib Ahsan,  Utilization of Rice Husk Ash with Clay to Produce Lightweight Coarse Aggregates for Concrete  .   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2021, vol. 171(3). 166 - 171
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/10011917.