WASET
    P. I. Itoua and  D. Sun and  S. Shen,  Investigating the Properties of Asphalt and Asphalt Mixture Based on the Effect of Waste Toner.   journal   = {International Journal of Structural and Construction Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2024, vol. 206(2). 76 - 82
    [viewed 28 April 2024]. Available from: https://publications.waset.org/pdf/10013527.