1. Adel, K.M. and Kheder, A.R.I. 2001. The 4th Jordanian International Mechanical Engineering Conference, Amman- Jordan, pp. 395-406.
2. Laser surface modification of ductile iron: Part 1 Microstructure
3. Laser surface modification of ductile iron: Part 2 Wear mechanism
4. Sov.Journal;Danileko;Quantum Electron,1986
5. Eckersky, J.S. 1996. Laser application in metal surface hardening, pp. 200-210.