text Jakarta Indera 1981 ind 135 hlm ilus 21 cm Wirasto Matematika Ekonomi 510.7 YOPDYOG 20130305103536.0 YOGYA-03130000000134 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)