00489     2200169   4500001002100000005001500021035002000036008004100056245004600097100001300143260004400156300002600200084002000226520004500246082000800291650002000299INLIS00000000000137320230925122045  a0010-0421001373230925                           0 ind  1 aPetunjuk Praktis Keselamatan Kerja Jil. 2  aSoedjono  aJakarta :bBhratara Karya Aksara,c1985  c2 Jil.: ilus.; 21 cm.  a331 / SOE p k.1  aMengenai keselamatan dan kesehatan kerja  a331 4aKESEHATAN KERJA