Manaf, H. A.-G.; Suyudi, M. A. R.; Razaan, M. F.; Praba, V. M.; Al Mufid, S.; Adhima, F.; Nugroho, P. S. MEDICAL SNORKEL-MASK: A REUSABLE PERSONAL PROTECTIVE EQUIPMENT FOR HEALTH WORKERS. JCMPHR 2022, 3, 66-74.