1. Code of practice for strengthened/reinforced soils and other fills;BS8006,1995
2. Reinforced soil, principles for calculation, Terratema AB, Linköping;Carlsson,1987
3. Horizontal pressure on pile foundation;Franx;Proc. 2nd ICSMFE,1948
4. Geogrid reinforced embankment on piles-Monitoring;Gartung,1996
5. Plate loading tests on geogrid-reinforced earth slabs;Guido,1987