1. American Petroleum Institute, A.R.P.f.P. 1984. Designing and constructing fixed off-shore platforms. Washington, DC: API.
2. Lateral-Load Tests on Drilled Pier Foundations for Solar Plant Heliostats
3. Bhushan, K. and Haley, S. (1980). Development of computer program using PY data from load test results for lateral load design of drilled piers. Woodward-Clyde Consultants Professional Development Committee, San Francisco, Calif, 1183.
4. Bhushan, K., Lee, L.J., and Grime, D.B. 1981, October. Lateral load tests on drilled piers in sand. In: Drilled Piers and Caissons. St. Louis, Missouri, United States: ASCE, 114–131.