Items where Author is "Sia, Boby Shianto"
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Thesis
Sia, Boby Shianto (2000) Penerapan sistem keselamatan dan kesehatan kerja di PT."X". Other thesis, Petra Christian University.
Sia, Boby Shianto (2000) Penerapan sistem keselamatan dan kesehatan kerja di PT."X". Other thesis, Petra Christian University.