text Yogyakarta Andi Offset 1989 Ed.1, cet.1 ind xi, 196 hlm ilus 23 cm Nur Feriyanto Ekonomi matematika 330.01 20090227022405.0 YOGYA-02090000014146 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)