i need these book pdf
1. Seshu P.,”Text Book of Finite Element Analysis”, Prentice Hall India
2. Arora, C.P., Refrigeration and Air Conditioning, Tata McGraw Hill or Refrigiration and air conditioning by R.S.khurmi
3. Operations Research, Ravindran, Phillips and Solberg, Wiley India.
4. Gas turbines, V. Ganesan, Tata McGraw-Hill and Subramanya, K., Hydraulic Machine, Tata McGraw Hill
5. Stevenson, Operations Management, Tata McGraw Hill.
6. Krar S. and Gill A., CNC: Technology and Programming, McGraw Hill
please help me to getting these books...................