[1]
Nur Masdalifah 2022. Differences in Knowledge Before and After Instructions on Washing Hands During the Covid-19 Pandemic in the Social Services of the Elderly Management Year 2020. International Journal of Public Health Excellence (IJPHE). 1, 1 (Jan. 2022), 83–87. DOI:https://doi.org/10.55299/ijphe.v1i1.200.