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1- https://covid19bilgi.saglik.gov.tr/tr/covid-19-yeni-koronavirus-hastaligi-nedir

2- https://covid19.who.int/

3- https://yigm.ktb.gov.tr/Eklenti/69320,turizmistatistikleri2019-4pdf.pdf?0

4- https://tr.euronews.com/2020/04/06/ekvador-da-covid-19-dan-olenlerin-cans-z- bedenleri-sokaklara-tast

5- https://turizmgazetesi.com/news.aspx?id=90195

6- https://turizmgazetesi.com/news.aspx?id=90204

7- https://www.independent.co.uk/news/world/americas/coronavirus-lockdown- how-long-when-end-bill-gates-shut-down-a9446966.html

8- https://www.businessinsider.com/bill-gates-warns-the-next-pandemic-disease- is-coming-2018-4

9- http://tureb.org.tr/tr/RehberIstatistik/