1. New Insights into European Waste Management Choices: Assessing the Eco-efficiency of Plastics Packaging Waste Recovery;AMPE,1999
2. Standard Methods for the Examination of Water and Wastewater, Method 2540 E Fixed and Volatile Solids Ignited at 550 ± 50 OC;APHA/AWWA/WPCF 2540 E,1989
3. Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke;ASTM D 5373,2002
4. Statistics Report of Exchange Rate;Bank of Thailand,2013
5. Biodegradable packaging life-cycle assessment;Bohlmann;Environ. Prog.,2004