Putri, Eni Ayu, et al. “Pengujian Maksimal Penggunaan Ulang Masker Kain Dengan Berbagai Jenis Bahan Baku Masker: Maximum Testing of Cloth Mask Reuse With Different Types of Mask Materials”. Proceeding of Mulawarman Pharmaceuticals Conferences, vol. 14, no. 1, Dec. 2021, pp. 204-13, doi:10.25026/mpc.v14i1.553.