1. M. J. Tomlinson and R. Boorman, “Foundation Design and Construction “(Fifth Edition, John Wily and Sons, 1986).
2. E. Franke, “Measurements beneath Piled Rafts”, Keynote lecture to the ENPC-Conference on Deep Foundations, Paris, 1991), pp. 1–28.
3. K. Yamashita, M. Kakurai and T. Yamada, “Investigation of a Piled Raft Foundation on Stiff Clay”, (International Conference on Soil Mechanics and Foundation Engineering, New Delhi, India, 1994). pp. 543–546
4. M. F. Randolph, “Theoretical and Physical Modeling in Geotechnical Research and Practice”, (Jordanian Civil Engineering Conference, Amman, Jordan, 2006).
5. J.B. Burland, “Piles as Settlement Reducers”, (Keynote Address, 18th Italian Congress on Soil Mechanics, Pavia, Italy, 1995).