1. Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System);ASTM Standard D2487,2006
2. Standard Test Method for Determining Performance Strength of Geomembranes by Wide Strip Tensile Method;ASTM D-4885,2011
3. Standard Test Method for Tensile Properties of Geotextiles by the Wide-width Strip Method;ASTM D-4595,2009
4. The resistance of breaking-out of mushroom foundations for pylons;Balla,1961
5. Pullout load capacity of circular earth anchor buried in sand;Baker;National Academy of Sciences, Highway Research Board, Report,1966