1. ASCE (1966). Stability and Performance of Slopes and Embankments Proceedings of an ASCE Specialty Conference Berkeley California.
2. ASCE (1992) Stability and Performance of Slopes and Embankments-II Proceedings of an ASCE Specialty Conference Berkeley California Geotechnical Special Publication No. 31.
3. ASDSO (2003) Association of State Dam Safety Officials Water Webster News Summary 11/10/2003 Community Partners 1000 North Alameda Street Suite 240 Los Angeles CA 90012.
4. Baecher G.B. and Christian J.T. (2003). Reliability and Statistics in Geotechnical Engineering. Wiley: Chichester UK; Hoboken NJ 618 p.
5. Baecher G.B. and Christian J.T. (2008). Spatial variability and geotechnical reliability Chapter 2 (pages 76-133) of Reliability-Based Design in Geotechnical Engineering- Computations and Applications Taylor and Francis ed. K.K.Phoon.