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Estimation of gravity of labour process and morbidiny of workers of the book-stitching shop of the printing-works https://journal.hep.com.cn/0368-4814/EN/10.17816/kazmj65064
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Estimation of gravity of labour process and morbidiny of workers of the book-stitching shop of the printing-works https://journal.hep.com.cn/0368-4814/EN/10.17816/kazmj65064
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