https://www.cambridge.org/core/journals/journal-of-economic-history/article/abs/industrial-slavery-in-china-during-the-former-han-dynasty-206-bcad-25/0B268B57193E3634DA61B8DEEBA38213
Industrial Slavery in China During the Former Han Dynasty (206 B.C.-A.D. 25) - Volume 3 Issue 1
slavery in chinaformer han dynastyindustrial