Febrianna, Fatima Intan, et al. “Effect of Cleaning Process on Physical and Microbiological Air Quality in Hospital Environment: Case Study of Bhakti Dharma Husada Hospital”. Jurnal Hygiene Sanitasi, vol. 5, no. 1, Apr. 2025, pp. 1-8, doi:10.36568/hisan.v5i1.101.