1. Period Formulas for Concrete Shear Wall Buildings
2. Uniform Building Code. International Conference of Building Officials, Whittier, CA, U.S.A., 1997.
3. Period formulas of shear wall buildings with flexible bases
4. NBCC (95)—National Research Council Canada. Supplement to the National Building Code of Canada, Ottawa, Canada, 1995.
5. Emerging Issu;Gazetas,1998