Fahma, F., A. Firmanda, E. Widiastuti, M. Syarif, S. Robbani, M. Sarfat, R. Ridwansyah, Y. Rosalina, G. Pradipta, S. Maghfiro, E. Thamrin, and R. Somantri. “Production of Cellulose and Chitin Nanofibers Based Masks for Protecting Against Corona Virus: A Review”. Journal of Applied Research and Technology, Vol. 20, no. 5, Oct. 2022, pp. 613-29, doi:10.22201/icat.24486736e.2022.20.5.1374.