A. Yulianto, F., A. A. Nurrahman, Y. S. Rejeki, N. R. As’ad, E. Amrullah, M. Nurhalim, M. A. Shakira, and M. M. Ibrahim. 2022. “The Development of Modular and Re-Usable Face Shields for COVID- 19 Prevention in Clinics”. KnE Life Sciences 7 (5), 245–253. https://doi.org/10.18502/kls.v7i5.12533.