1. Plastic moisture barriers for highway subgrade protections;Bell,1956
2. Soft Ground Improvement in Lowland and Other Environment;Bergado,1996
3. Estimating optimum water content and maximum dry unit weight for compacted clays;Blotz;Journal of Geotechnical Engineering, ASCE,1998
4. Effects of variation of fill construction on the material properties and the subsequent fill performance;Boutwell,1961
5. Calculation of standard proctor density and optimum moisture content from mechanical, analysis, shrinkage and factors and plasticity index, Highway Research Board;Davidson;Proc. Annual Meeting,1949