1. Natural Disasters;Ritchie,2014
2. World Health Organization. WHO Director-General's opening remarks at the media briefing on COVID-19 - 11 March 2020. 11 March 2020.
3. COVID-19 Dashboard by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University (JHU),2022
4. Disaster operations handbook,2008
5. Blood Safety and Availability,2022