Title: Sangyō kōzō no henka to gaikokujin rōdōsha
Subjects: Foreign workers, History, Industries, Imin shokumin, Gaikokujin rōdōsha, Änderung, Ausländischer Arbeitnehmer, Industriebetrieb, Migration, Chōsen Kōgei Kenkyūkai
Places: Japan
Time periods: 20th century, 21st century