Pramesti, H. N. .; Purnomo, Y. S. .; Amalia, A. .; Rachmanto, T. A. .; Cahyonugroho, O. H. . Effectiveness of Waste Shrimp Shell As Chitosan Polymer Medium (CPM) Mask In Reducing Cigarette Smoke. nuscientech 2022, 383-398.