• Na Woon-Hwan

• Journal of Vocational Rehabilitation   1998  Volume.8  No.1 113 ~ 123

• Park Hee-Chan

• Sim Im-Seub

• Journal of Vocational Rehabilitation   1998  Volume.8  No.1 89 ~ 112

• Oh Kil-Seung

• Journal of Vocational Rehabilitation   1998  Volume.8  No.1 71 ~ 88

• Park Suk-Don

• Journal of Vocational Rehabilitation   1998  Volume.8  No.1 49 ~ 70

• Lee Sang-Wook

• Journal of Vocational Rehabilitation   1998  Volume.8  No.1 29 ~ 47

• Kang WI-Yung

• Kim Jae-Ik

• Journal of Vocational Rehabilitation   1998  Volume.8  No.1 1 ~ 28