Osada, T. (1991). The 5S's: Five keys to a total quality environment. Japan: Asian Productivity Organization.
Trích dẫn kiểu ChicagoOsada, Takashi. The 5S's: Five Keys to a Total Quality Environment. Japan: Asian Productivity Organization, 1991.
Deismireacht MLAOsada, Takashi. The 5S's: Five Keys to a Total Quality Environment. Japan: Asian Productivity Organization, 1991.
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