Indasah, Pramono, and Sri Rahayu. “Environmental Health With the Standardization of Air Ventilation Covid Radiology Examination Room-19 at Mardi Waluyo Hospital, Blitar City”. Journal for Quality in Public Health 6, no. 2 (May 22, 2023): 390–398. Accessed September 28, 2025. https://jqph.org/index.php/JQPH/article/view/464.