Egor P.Popov, Engineering Mechanics of Solids, Second Edition
Richard W. Hertzberg, Deformation and Fracture Mechanics of Engineering Materials
Beer and Johnston, Mechanics of Materials, Mc Graw Hill 1981
http://en.wikipedia.org/wiki/Hooke's_law
http://www.4physics.com/phy_demo/HookesLaw/HookesLawLab.html
http://en.wikipedia.org/wiki/Solid_mechanics
http://nptel.ac.in/courses/112107147/
http://en.wikipedia.org/wiki/Mohr%27s_circle