P. J. Tay and S. H. Nasir, “A Review Study on the Effect of Needle Punching Machine Parameters on the Filtration Efficiency of Non-woven Fabric used for Development of Face Mask”, peat, vol. 2, no. 1, pp. 769–778, Jun. 2021, Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/665