1. Alloway BJ (2015) Heavy metals in soils. Mineral Mag 55(8):1318–1324
2. Archie GE (2013) The electrical resistivity log as an aid in determining some reservoir characteristics. Well Logging Technol 146(3):54–62
3. ASTM D2166-06 (2006) Standard test method for unconfined compressive strength of cohesive soil. American Society for Testing and Materials, West Conshohocken, Pa
4. ASTM (2011) Standard practice for classification of soils for engineering purposes (unified soil classification system). ASTM (American Society for Testing and Materials), West Conshohocken, PA (D2487)
5. Bradl HB (2004) Adsorption of heavy metal ions on soils and soils constituents. J Colloid Interface Sci 277(1):1–18