Thabed Tholib Baladraf. “INNOVATION OF BIODEGRADABLE MEMBRANE NANOFILTER MASK BASED ON CELLULOSE EMPTY PALM OIL BUNCHES AS A FUTURE MASK”. Khazanah: Jurnal Mahasiswa, vol. 13, no. 4, May 2022, doi:10.20885/khazanah.vol13.iss4.art18.