Wati, W. S., Cahyani, A. A. A. E., Prihatiningsih, D., & Parwati, P. A. (2025). Quality Control Analysis of Creatinine Examination with Westgard Multi Rules and Six Sigma. Basic and Applied Nursing Research Journal, 6(1), 41-49. https://doi.org/10.11594/banrj.06.01.05