text Jakarta Gunung Agung 1976 Cet. 2 ind xii, 321 hlm ilus 24 cm Suma'mur P.K Kesehatan kerja 331.25 20090227023714.0 YOGYA-02090000022758 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)