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WikiPedia: หลอดดูด http://news.nationalgeographic.com/2017/04/plastic... http://www.ecocycle.org/bestrawfree/faqs https://www.theatlantic.com/business/archive/2011/... https://web.archive.org/web/20170428230131/https:/... https://web.archive.org/web/20170629144206/http://... https://web.archive.org/web/20170705144922/http://... https://www.strawlessocean.org/faq/