MAMOUDOU, Sani, et al. “Evaluation of Nano-Hydroxyapatite Nano-Kaolin Composite Additives on the Physical Properties of Hot Mix Asphalt Binder”. FUDMA Journal of Engineering and Technology, vol. 2, no. 2, Aug. 2026, pp. 238-5, https://doi.org/10.33003/9cszz660.