Daniel, Yohanes, et al. “Comparison of The WHO Formula A and B Handrub Effectiveness Against Staphylococcus Aureus : Study In Diponegoro National Hospital Emergency Room, High Care Unit, and Storeroom Based on PrEN12054 Modification”. Sains Medika: Jurnal Kedokteran Dan Kesehatan, vol. 9, no. 2, Nov. 2018, pp. 50-55, https://doi.org/10.30659/sainsmed.v9i2.2639.