1. Schey, J. A. 2000.Introduction to Manufacturing Processes, 3rd Ed. 347Boston: McGraw-Hill.
2. Advanced fatigue reliability analysis
3. Mielnik, E. M. 1991.Metalworking Science and Engineering256New York: McGraw-Hill.
4. Laue, K. and Stenger, H. 1981.Extrusion: Processes, Machinery, Tooling51Metals Park: American Society for Metals.