Suryono Ekotama text Jakarta PT Gramedia Pustaka Utama 2015 - id xviii + 136hlm 650.1 978-602-03-1695-6 180916 20180916015452 INLIS000000000008074 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)