00503     2200169   4500001002100000005001500021035002000036008004100056245004400097100001600141260005600157300003200213084002000245520003800265082001000303650002000313INLIS00000000000099120250901090316  a0010-0421000991250901                           0 ind  1 aBuku Pegangan Siswa: Keselamatan Kerja.  aSuprapto, B  aJakarta :bDirektorat Pend.Menengah Kejuruan,c1992  ciii, 22 hal.: ilus.; 29 cm.  a363.1 SUP b k.1  aMengenai teknik keselamatan kerja  a363.1 4aKESEHATAN KERJA