WASET
    M. N. Akhtar and  J. N. Akhtar,  Suitability of Class F Flyash for Construction Industry: An Indian Scenario.   journal   = {International Journal of Structural and Construction Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2018, vol. 141(9). 892 - 897
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10009563.