A Study on Recent Trend of INvestment By General Trading Companies. (SOGO-SHOSHA). Golden Jubilee Publication for Graduate School of Management KINKI UNIVERSITY. 2003. 83-105
A Study on Development for New Technology-Buisiness by General Trading Companies (SOGO-SHOSHA). Journal of Business administration and Marketing Strategy, THE SOCIETY OF BUSINESS ADMINISTRATION AND MARKETING STRATEGY KINKI UNIVERSITY. 2003. 50. 1. 1-17
A Study on Development for New Technology-Buisiness by General Trading Companies (SOGO-SHOSHA). Journal of Business administration and Marketing Strategy, THE SOCIETY OF BUSINESS ADMINISTRATION AND MARKETING STRATEGY KINKI UNIVERSITY. 2003. 50. 1. 1-17