1. Aswathappa, K. (2005), Human Resource and Personnel Management Text and Cases, 4th ed. p 467.
2. 2- Dessler, G. (2005,) Human Resource Management, 10th ed, New Jersey: Pearson Prentice Hall.
3. Dwivedi, S. R. (2006) Managing Human Resource Personnel Management in Indian Enterprises, 2nd ed.
4. Gupta, C. (2006), Human Resource Management, New Delhi: Sultan Chand and Sons
5. Prasad, L. (2005), Human Resource Management, 2nd ed., New Delhi: Sultan Chand and Sons.