한국경영정보학회, page. 527 - 536, 1998-11-01
Proceedings of the 1998 Korean Institute of Industrial Engineers Conference, 1998-10-01
1998 Korean Institute of Industrial Engineers Conference, page. 604 - 608, 1998-10-01
1998 Korean Human Factors Engineering Society, page. 321 - 324, 1998-10-01
Proceedings of the 1998 Joint Conference of Korean Institute of Industrial Engineers and Korean Oper, page. 1 - 6, 1998-04-01
1998 Korean Society for Quality Management Conference, page. 395 - 402, 1998-04-01
Korean Society for Quality Management, page. 189 - 192, 1997-11-01
1997 Korean Institute of Industrial Engineers Conference, page. 1 - 6, 1997-10-01
2001 Korean Society for Quality Management Conference