Taufiq Agus Supriyanto et al. 2025. The Collaboration of Statistical Process Control and Root Cause Analysis Method in Maintaining The Quality of Biometric Solution Products. Management Dynamics: International Journal of Management and Digital Sciences. 2, 3 (Jul. 2025), 220–233. DOI:https://doi.org/10.70062/managementdynamics.v2i3.309.