THE FUTURE BELONGS TO THE TROPICS. ASM FOCUS [online]. 2020-07-24 [cit. 2021-06-25]. Dostupné online. (anglicky)
india.com
STAFF, India com. International Day of The Tropics 2020: History And Significance of The Day. India News, Breaking News | India.com [online]. 2020-06-23 [cit. 2021-06-25]. Dostupné online. (anglicky)
STAFF, India com. International Day of the Tropics 2020: Why The Tropical Regions Are Important. India News, Breaking News | India.com [online]. 2020-06-29 [cit. 2021-06-25]. Dostupné online. (anglicky)
jcu.edu.au
Let’s celebrate the International Day of the Tropics. www.jcu.edu.au [online]. 2016-06-20 [cit. 2021-06-25]. Dostupné online. (anglicky)
un.org
NATIONS, United. International Day of the Tropics. United Nations [online]. [cit. 2021-06-25]. Dostupné online. (anglicky)
Virt - International Day of the Tropics 2021 | Your guide to the world's most meaningful events. virt.com [online]. [cit. 2021-06-25]. Dostupné v archivu pořízeném dne 2021-06-25.