1. Africa Centers for Diseases Control and Prevention (Africa CDC), 2020. https://africacdc.org/.
2. African Developing Bank Group website: https://www.afdb.org/fr/documents/working-paper-338-not-good-time-economic-impact-covid-19-africa.
3. The Effect of Inclination Angle and Reynolds Number on the Performance of a Direct Contact Membrane Distillation (DCMD) Process;Alanezi;Energies,2020
4. Effects of increased residential mobility and reduced public spaces mobility in containing COVID-19 in Africa;Asweto;J. Global Health Rep.,2020
5. BBC News, 24 March 2020. An article about: Beijing orders 14-day quarantine for all returnees. https://britishasianews.com/beijing-orders-14-day-quarantine-for-returnees/.