1. Probability Concepts in Engineering: Emphasis on Applications in Civil and Environmental Engineering;Ang,2007
2. About permeability of subsurface soils in case of incomplete saturation;Averjanov;English Collection,1950
3. Bishop, A., 1960. The Principle of Effective Stress. Tecnisk Ukeblad 39.
4. Probabilistic analysis of weathered soil slope in South Korea;Bong;Adv. Civ. Eng.,2018
5. Hydraulic properties of porous media;Brooks;Hydrology Paper,1964