KONPRENSI text Jakarta MUTIARA JAKARTA 1978 id 32hlm;14.7x21cm ilmu Pengetahuan Tentang Bumi 551 241224 20241224114831 INLIS000000000014900 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)