“Machining Constraint Analysis of CNC Turning in the Manufacturing Process of Titanium Ti-6Al-4V ELI Bone Screw Implants: Analisis Kendala Pemesinan CNC Turning pada Proses Manufaktur Implan Bone Screw Material Titanium Ti-6Al-4V ELI”, PELS, vol. 10, no. 1, pp. 128–135, Oct. 2026, doi: 10.21070/pels.v10i1.3150.