Title: "Kongo no Rōdō Keiyaku Hōsei no Arikata ni Kansuru Kenkyūkai" hōkokusho oyobi "Kongo no Rōdō Jikan Seido ni Kansuru Kenkyūkai" hōkokusho kankei shiryōshū
Subjects: Labor laws and legislation, Labor contract, Hours of labor
Places: Japan