1. How Toyota shortened supply lot production time, waiting time and conveyance time;Monden;Ind. Eng.,1981
2. What makes the Toyota production system really tick?;Monden;Ind. Eng.,1981
3. Nishiyama, N., Toyota Production System. Production Dept. of Industrial Engineering, University of Osaka, Osaka, Japan.
4. Japanese Manufacturing Techniques;Schonberger,1982