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: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/8642