H. K. G. K. D. K. Hapuhinna and  R. D. Gunaratne and  H. M. J. C. Pitawala,  A Composite Developed from a Methyl Methacrylate and Embedded Eppawala Hydroxyapatite for Orthopedics .   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2019, vol. 150(6). 270 - 279
    [viewed 11 August 2020]. Available from: https://publications.waset.org/pdf/10010493.