text Jakarta Gramedia Pustaka Utama 1991 ind 352 hlm. 21x14cm Otto Soemarwoto Permasalahan Lingkungan 363.7 363.7 SOE I C.1 979-511-149-3 INLIS000000000000959 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)