Mujamilah, Ahmad Furqon Syidik, Grace Tj. Sulungbudi, Wildan Z. Lubis, and Aloma Karo Karo, “SYNTHESIS AND CHARACTERIZATION OF MAGNETIC-HYDROXY APATITE COMPOSITE USINGONE SPOT COPRECIPITATION METHOD”, j. sains materi indonesia, vol. 18, no. 2, pp. 81–86, Jan. 2017.