1. Chen, W.F., and G. Y. Baladi, 1985. Soil Plasticity: Theory and Implementation, Elsevier, Amsterdam, The Netherlands.
2. Chen, W.F., 1982. Plasticity in Reinforced Concrete, McGraw-Hill, New York.
3. Chen, W.F., and A.F. Saleeb, 1982. Constitutive Equations for Engineering Materials, Volume 1: Elasticity and Modeling, Wiley-Interscience, New York.