text Jakarta Bumi aksara 1997 cet 1 ind xii,189Hlm.: Ilus .; 21Cm hlm.184-189 EKOLOGI 979-526-082-0 20110308113654.0 YOGYA-03110000000171 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)