วัตถุดิบทดแทน (Alternative raw material)
เม็ดพลาสติก HDPE
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[2] http://www.pvc.org/en/p/what-is-pvc
[3] Sarker, M. 2011. Municipal Waste Plastic conversion into Different Category Liquid Hydrocarbon Fuel, Chemistry, Emission Control, Radioactive Pollution and Indoor Air Quality, Nicolas Mazzeo (Ed.), ISBN: 978-953-307-316-3, InTech, Available from: http://www.intechopen.com/books/chemistry-emission-control-radioactive-pollution-and-indoor-air-quality/municipal-waste-plastic-conversion-into-different-category-liquid-hydrocarbon-fuel
[4] http://library.uru.ac.th/webdb/images/charpa_alumrecy.html