1. 1981. Engineering Properties of Soils and Rocks. Butterworths: London.
2. Alteration of soil parameters by stabilization with lime. In Proceedings of 10th International Conference of Soil Mechanics and Foundation Engineering; 587-594.
3. 1996. Practical Foundation Engineering Handbook. McGraw-Hill: New York.
4. 1984. In Proceedings of the Ist International Congress on Environmental Geo Techniques, 11-15 July, 1994. 34(2): 211-228. Bi Tech: Richmond.
5. Caterpillar Inc. 1995. Caterpillar Performance Handbook. CAT: Peoria, USA.