text Jakarta Depdikbud 1993 xvi, 192 Hlm. : ilus. ; 25 cm. / Naniek Kasniyah ... [et.al] Lingkungan, Masalah 630.9598235 DEP 630.9598235 Dam YOPDYOG 20170412102616.0 YOGYA000000000033874 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)