1. New JIT: a new management technology principle at Toyota;Amasaka;Int J Prod Econ,2000
2. Amasaka K. TQM-S, A new principle for TQM activities—a new demonstrative study on science SQC, Proceedings of international conference on production research, Bangkok, Thailand; 2000. p.1–6.
3. Proposal and implementation of the “Science SQC” quality control principle;Amasaka;Int J Math Comput Model,2003
4. Amasaka K. A study of flyer advertising affect when TMS-S at Toyota. Proceedings of the 12th annual conference of the Production and Operations Management Society, Orland, FL; 2001. p. 1–8 (CD-ROM).
5. Amasaka K. Development of “New JIT”, Key to the excellence design “LEXUS”, a strategic methodology of merchandise. Proceedings of the Production and Operations Management Society, Savannah, GA; 2003. p. 1–8 (CD-ROM).