renungan filsafat hidup manusia modern text Jakarta Yayasan Obor Indonesia 1987 Cet. 1 ind x, 105 hlm ilus 21 cm Y.B. Mangunwijaya Filsafat Modern 190 20090227020906.0 YOGYA-02090000006359 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)