WASET
    Chaiyakrit Raoupatham and  Ram Hari Dhakal and  Chalermchai Wanichlamlert,  Estimation Model for Concrete Slump Recovery by Using Superplasticizer.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2015, vol. 108(12). 1588 - 1593
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10003133.