A. N. A. Ahmad, “Implementation Of Lean Technique Towards Reducing Waiting Time In A Public Healthcare Using Arena Simulation”, IJIE, vol. 13, no. 7, pp. 201–214, Sep. 2021, Accessed: Apr. 08, 2026. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/8642