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2. ASTM D 854, 2010. Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer. Annual Book of ASTM Standards. American Society for Testing and Materials, West Conshohocken, PA.
3. ASTM D1557, 2012. Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)). Annual Book of ASTM Standards. American Society for Testing and Materials, West Conshohocken, PA.
4. ASTM D2974, 2012. Standard Test Methods for Moisture, Ash, and Organic Matter of Peat and Other Organic Soils. Annual Book of ASTM Standards. American Society for Testing and Materials, West Conshohocken, PA.
5. Constitutive model for municipal solid waste incorporating mechanical and biodegradation-induced compression;Babu;Waste Manage.,2010