A Study of Hybrid Composite Hydroxyapatite (HA)-Geopolymers as a Material for Biomedical ApplicationSaleha, Andi Riska, Ainun Nisa Makmur, Fathurrakhman Ansar and SubaerMATEC Web Conf., 97 (2017) 01016DOI: https://doi.org/10.1051/matecconf/20179701016