Suryono Ekotama text Jakarta Gramedia Pustaka Utama 2012 id 658.41 978-979-22-9204-7 241224 20241224131527 INLIS000000000023562 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)