1. (1) White paper on aging society, Cabinet Office, Government of Japan, (2005), pp.2-14.
2. (2) The Ministry of Health of Japan Analysis of Labor Economy, Ministry of Health, Labour and Welfare of Japan, (2005), pp.162-176.
3. (3) Kimura, Y., Taniguchi, Y., Fujinami, M., “Factor to promote OJT in manufacturing”, Journal of The Japan Institute for Labour Policy and Training, No.26(2007)
4. Knowledge Acquisition and Job Training for Advanced Technical Skills Using Immersive Virtual Environment