Akbar, A., and S. Cahyaningrum. “Characterization and Anti-Bacterial Activity Testing of the Nano Hydroxyapatite-Clove (Eugenia Caryophyllus) Against Streptococcus Mutans Bacteria”. Indonesian Journal of Chemical Science, Vol. 11, no. 1, May 2022, pp. 1-8, doi:10.15294/ijcs.v11i1.51037.