text Jakarta Yayasan Obor Indonesia 1982 Cetakan : 2 ind x, 132 hlm. ;20 cm. Ilmu Pengetahuan Umum 001.2 20130515191021 INLIS000000000007187 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)