1. Plastics—The Facts 2020
https://www.plasticseurope.org/en/resources/publications/4312-plastics-facts-2020
2. Industrial Organic Chemicals;Wittcoff,2013
3. Energy for Plastic;Hamman,2010
4. Polymer Properties Database
https://polymerdatabase.com
5. Recycling of Polymers;Hawkins,1987