"Treatment Waste". EPA Definition of Solid Waste and Recycling. مؤرشف من الأصل في 2012-10-26.
www3.epa.gov
"Material Characterization Paper"(PDF). EPA Final Rulemaking: Identification of Nonhazardous Secondary Materials That Are Solid Waste Biomass - Agricultural Residues and Food Scraps. 3 فبراير 2011. مؤرشف من الأصل(PDF) في 2020-05-16.[وصلة مكسورة]
"Material Characterization Paper"(PDF). EPA Final Rulemaking: Identification of Nonhazardous Secondary Materials That Are Solid Waste Biomass - Agricultural Residues and Food Scraps. 3 فبراير 2011. مؤرشف من الأصل(PDF) في 2020-05-16.[وصلة مكسورة]