1. Emergencies Preparedness, Disease Outbreaks,2020
2. International Health Regulations (2005) Third Edition,2016
3. WHO Global Influenza Preparedness Plan: The Role of WHO and Recommendations for National Measures Before and During Pandemics,2005
4. WHO Director-General's Opening Remarks at the Media Briefing on COVID-19 - 11 March 2020,2020
5. Coronavirus Disease (COVID-19) Situation Report–121,2020