Bin Amir, Adam, Farrah Aini Dahalan, Lutfiah Anjarwati, and Wildan R. Kurniawan. “Assessment of Microbiological Growth on Surgical Face Mask”. Environmental and Toxicology Management 2, no. 3 (December 20, 2022): 6–9. Accessed July 22, 2024. https://journal2.unusa.ac.id/index.php/ETM/article/view/3557.