Adil Elrayah and  Jie Weng and  Esra Suliman,  Effect of Copper Ions Doped-Hydroxyapatite 3D Fiber Scaffold .   journal   = {International Journal of Biomedical and Biological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2019, vol. 154(10). 255 - 259
    [viewed 12 December 2019]. Available from: https://publications.waset.org/pdf/10010823.