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Diakses pada 20 April 2020Earth Day. https://www.earthday.org/7-eco-friendly-actions-for-kids-during-the-pandemic/
Diakses pada 20 April 2020WWF. https://www.wwf.org.uk/thingsyoucando
Diakses pada 20 April 2020National Ocean Services. https://oceanservice.noaa.gov/ocean/earthday.html
Diakses pada 20 April 2020Save on Energy. https://oceanservice.noaa.gov/ocean/earthday.html
Diakses pada 20 Apri 2020