Sari, Nilam, et al. “Efektivitas Jenis Bahan Masker Kain Berdasarkan Kemampuan Penyaringan Mikroba: Effectiveness of Fabric Mask Material Types Based on Microbial Filtration Capabilities”. Proceeding of Mulawarman Pharmaceuticals Conferences, vol. 14, no. 1, Dec. 2021, pp. 49-57, doi:10.25026/mpc.v14i1.570.