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3. Ministry of Health, Labour and Welfare. Summary of the results of the 2006 Employment Trends Survey (2007) https://www.mhlw.go.jp/houdou/2007/08/h0822-1.html. Referenced on 2024-01-12
4. Kojima K (2015) Labour management for Vietnamese workers in Japanese companies (Nihonkigyou de hataraku betonamujin ni taisuru roumukanri ni tsuite[Japanese]). Kochi University of Technology
5. Aimsoul Inc., Human Global Talent Co., Ltd., and Lift Inc. A survey on the turnover and demotivation of foreign nationals working in Japan (2021) https://www.daijob.com/uploads/pdfs/a4ebf7-7d94-4f3ea.pdf. Referenced on 2024-01-12