Qosim, N., S. Supriadi, A. Shamsuddin-Saragih, and Y. Whulanza. “Surface Treatments of Ti-Alloy Based Bone Implant Manufactured by Electrical Discharge Machining”. Ingenieria Y Universidad, vol. 22, no. 2, Aug. 2018, doi:10.11144/Javeriana.iyu22-2.sttb.