• 4 History
• 1 Civilization
• 1 Labor movement
• 1 Social conditions
• 1 Working class

• 1 Asahi Shinbunsha
• 1 Hōsei Daigaku. Ōhara Shakai Mondai Kenkyūjo
• 1 Minami, Hiroshi, 1914-2001
• 1 Tsuji, Kiyoaki, 1913-1991

• 5 Japanese

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