Turtle Savers.
https://www.turtlesavers.uk/blogs/news/the-benefits-of-metal-straws
Diakses pada 23 Maret 2020Get Green.
https://get-green-now.com/benefits-of-stainless-steel-straws/
Diakses pada 23 Maret 2020IOP Science.
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Diakses pada 23 Maret 2020