perlindungan buruh text Jakarta Pradnya Paramita 1975 Cet. 2 ind 148 hlm 21 cm Iman Supomo Bibliografi : hlm. 148 Hukum perburuhan 344.01 20090227023900.0 YOGYA-02090000024674 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)