Adroddiad gan Public Health England, dan y teitl 'Ethnity and COVID-19: analysis of Public Health England data gwyliadwriaeth', dyddiedig 05/05/2020.
Adroddiad gan Public Health England, dan y teitl 'Ethnity and COVID-19: analysis of Public Health England data gwyliadwriaeth', dyddiedig 05/05/2020.