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Radityaaw21 (bicara | kontrib)
k Saya hanya mengubah kata "memonyai" menjadi "mempunyai"
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== Pranala luar ==
Semua dalam bahasa Inggris.
* [http://www.psrc.usm.edu/macrog/styrene.htm Macrogalleria: Polystyrene] {{Webarchive|url=https://web.archive.org/web/20050207154220/http://www.psrc.usm.edu/macrog/styrene.htm |date=2005-02-07 }}
* [http://www.plasticsindustry.org/outreach/recycling/2124.htm Society of the Plastics Industry] {{Webarchive|url=https://web.archive.org/web/20051030143731/http://www.plasticsindustry.org/outreach/recycling/2124.htm |date=2005-10-30 }}
* [http://www.dartcontainer.com/ Dart Container]
* [http://www.dow.com/styrofoam/]
* [http://plastics.dow.com/ Dow Chemical Plastics]
* [http://www.polystyrene.org] {{Webarchive|url=https://web.archive.org/web/20070122115436/http://www.polystyrene.org/ |date=2007-01-22 }}
* [http://www.verdant.net/nofoam.htm Arguments against polystyrene]
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