Ramdan, R. D., B. Prawara, R. Suratman, F. Marta, and A. Rinaldi. “The Effect of Substrate Pre-Treatment on Hydroxy-Apatite Coated Titanium Alloy by High-Velocity Oxy-Fuel Process”. MECHANICAL ; Jurnal Ilmiah Teknik Mesin, vol. 8, no. 1, Oct. 2017, pp. 1-5, doi:10.23960/mech.v8i1.580.