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  • × 1st International Conference on Environmental Science
  • × Chi-square tests
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1 The relationship between work period and use of personal protective equipment with respiratory disorder complaints in brick craftsman in Sintuk Toboh Gadang District Padang Pariaman Regency 2017 [会议论文]

作者:Lastri, Pirna^1, I., Dewata, M., Sari

关键词:Chi-square tests;Cluster sampling;...

会议举办机构:Department of Environmental Science, Post Graduate Program, Universitas Negeri Padang, Prof. Dr. Hamka Street, West Air Tawar, Padang-West Sumatera

会议时间:2019

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