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  1. http://www.reuters.com/article/us-waste-singapore-idUSSP9046620080522
  2. http://www.expatliving.sg/a-look-at-where-singapores-rubbish-ends-up-from-landfill-to-incineration/
  3. http://whatis.techtarget.com/definition/Reduce-reuse-recycle-R3
  4. http://www.zerowastesg.com/2008/12/08/diy-and-turn-waste-into-useful-items-and-art/
  5. http://www.carahealth.com/health-conditions-a-to-z/reproductive-system/breast-cancer/228-the-danger-of-burning-plastic.html
  6. http://superfoodsrx.com/healthyliving/reusing-plastic-is-not-safe/
  7. http://www.bigfatbags.co.uk/bans-taxes-charges-plastic-bags/
  8. http://www.telegraph.co.uk/news/2017/01/20/plastic-bottle-tax-could-introduced-tackle-waste/
  9. http://www.nlb.gov.sg/sure/wp-content/uploads/2014/07/resin-codes-poster.jpg
  10. http://www.container-recycling.org/index.php/issues/…/275-down-the-drain
  11. Blog avatar: http://www.panalytical.com/upload_mm/2/e/7/1374_fullimage_Plastices_Polymers455x255.jpg
  12. Blog photo: http://corporate.europages.fr/wp-content/uploads/2015/02/Plastique1.jpg
  13. http://www.nea.gov.sg/energy-waste/3rs/recycling-processes
  14. http://www.nea.gov.sg/energy-waste/3rs/collectors-traders-and-local-recycling-facilities
  15. http://www.zerowastesg.com/2008/12/08/plastics-recycling/
  16. http://www.conserve-energy-future.com/recyclingplastic.php
  17. https://books.google.com.sg/books?id=Yf7w2DtEHLcC&pg=PA32&lpg=PA32&dq=It+is+estimated+that+4%25+of+the+world%E2%80%99s+annual+oil+production+is+used+as+a+feedstock+for+plastics+production+and+an+additional+3-4%25+during+manufacture.&source=bl&ots=qvnH9zjevB&sig=ZevB3T1UfUins_bm21y9L_4wVco&hl=en&sa=X&ved=0ahUKEwi08-y87eLSAhWGs48KHcx9BQsQ6AEILTAD#v=onepage&q=It%20is%20estimated%20that%204%25%20of%20the%20world%E2%80%99s%20annual%20oil%20production%20is%20used%20as%20a%20feedstock%20for%20plastics%20production%20and%20an%20additional%203-4%25%20during%20manufacture.&f=false
  18. Nathan Levien Vanier, ,Shanise Lisie Mello El Halal, Alvaro Renato Guerra Dias,Elessandra da Rosa Zavareze. 2016. Molecular structure, functionality and applications of oxidized starches: A review. Food Chemistry 221: s. 1546-1559.
  19. C.F. Jasso-Gastinel. 2017. 8 – Gradients in homopolymers, blends, and copolymers. Modification of polymer properties: s. 185-210.
  20. Eric M. Krall, Tyler W. Klein, Ryan J. Andersen, Alex J. Nett, Ryley W. Glasgow, Diana S. Reader, Brian C. Dauphinais, Sean P. Mc Ilrath, Anne A. Fischer, Michael J. Carney, Dylan J. Hudson and Nicholas J. Robertson. 2014. Controlled hydrogenative depolymerization of polyesters and polycarbonates catalyzed by ruthenium(II) PNN pincer complexes. Royal society of communication 50: s. 4884-4887.
  21. Plastics Europe. 2016. Polystyrene (PS). http://www.plasticseurope.org/what-is-plastic/types-of-plastics-11148/polystyrene.aspx (accessed 21/3-2017)