1. ASTM (2006) ASTM D 4254: standard test methods for maximum index density and unit weight of soils and calculation of relative density. American Society of Testing and Materials, West Conshohocken, PA
2. ASTM (2009) ASTM D7263: standard test methods for laboratory determination of density (unit weight) of soil specimens. American Society of Testing and Materials, West Conshohocken, PA
3. ASTM (2012) ASTM D698: standard test methods for laboratory compaction characteristics of soil using standard effort. American Society of Testing and Materials, West Conshohocken, PA
4. Bear J (1979) Hydraulics of groundwater. McGraw-Hill, New York
5. Bedient PB, Rifai HS, Newell CJ (1999) Groundwater contamination: transport and remediation, 2nd edn. Prentice Hall, New York