“CHARACTERIZATION OF NANOHYDROXYAPATITE FROM TUNA’S Thunnus Sp BONE AS BIOMATERIALS SUBSTANCE”. Jurnal Ilmu Dan Teknologi Kelautan Tropis, vol. 9, no. 2, Jan. 2018, pp. 619-2, https://doi.org/10.29244/jitkt.v9i2.19296.