“Improving the Quality of Bleeder Parts With QC Seven Tools and Kaizen at PT Hitachi Astemo Bekasi Brake Systems”. International Journal of Sustainable Applied Sciences (IJSAS) 2, no. 6 (September 26, 2024): 581–596. Accessed October 13, 2025. https://penerbitjurnalinternasional.com/index.php/ijsas/article/view/620.