Test, Trace, Protect (contact tracing for coronavirus (COVID-19)): up to 19 June 2021, file type: ODS, file size: 32 KB
Profi, Olrhain, Diogelu (olrhain cysylltiadau ar gyfer coronafeirws (COVID-19)): hyd at 19 Mehefin 2021, math o ffeil: ODS, maint ffeil: 32 KB