text Yogyakarta [s.n.] 1995 ind vii, 92, [62] lembar 30 cm oleh Singgih Wiratma Skripsi Fak. Hukum Universitas Janabadra Yogyakarta Bibliografi : lembar 92 Keselamatan kerja 331.25 20150623112101.0 YOGYA-02090000044544 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)