1. The Louisiana Plane Strain Apparatus for Soil Testing
2. ASTM, 2012a. Test methods for laboratory compaction characteristics of soil using standard effort (12,400 ft-lbf/ft3 (600 kN-m/m3)). ASTM D698-12e2. West Conshohocken, PA: ASTM.
3. ASTM, 2012b. Test methods for laboratory compaction characteristics of soil using modified effort (56,000 ft-lbf/ft3 (2700 kN-m/m3)). ASTM D1557-12e1. West Conshohocken, PA: ASTM.
4. Atkinson, J.H., 1993. An introduction to the mechanics of soils and foundations: through critical state soil mechanics. UK: McGraw-Hill Book Company Ltd.
5. The strength and dilatancy of sands