1. Theoretical Soil Mechanics;Terzaghi,1943
2. Compaction of sands and bearing capacity of piles;Meyerhof;Jnl. of Soil Mech. and Found. Engrg. Div., ASCE,1959
3. Analysis of the deformation of vertically loaded piles;Randolph;Jnl. of Geot. Engrg. Div., ASCE,1978
4. Load transfer for axially loaded piles piles in clay;Coyle;Jnl. of Soil Mech. and Found. Engrg. Div., ASCE,1966
5. Load settlement relation for axially loaded piles;Kiousis;Jnl. of Geot. Engrg. Div., ASCE,1987