1. 1994.‘Lighter structural materials and their joining methods’, 11Publ Welding Society.
2. Welding Society. 1993.‘Basics of welding and joining engineering’, 160Publ Maruzen.
3. Kamada. 1987. ‘Application of laser welding to production of micro-motor coil’. Proc conf LAMP 1987. 1987, Osaka. pp.573
4. Grigoryants. 1994.‘Basics of laser material processing’217