ebooks link required

hi.. can any one provide the link for following ebooks....
thanks in advance.

Engineering mechanic (statics and dynamics) by


a. Beer and Johnston (the Tata McGraw Hill publications)






Strength of material by



a. G.H.Ryder (English Language Book society)





Vibrations by


a. V.P.singh





Refrigeration and Air conditioning by


a. R.K.Rajput (thermal science and engineering) (Laxmi publications)









Management science and Operations management



a. Hamdy A.Taha (operations research)( prentice hall of India privet limited)

b. William J. Stevenson ( introduction to management science)(IRWIN pub)


c. B.Mahadevan (Operations management) (Dorling Kindersley (India)Privet limited)

d. J.K.sharma (operations research)