text Yogyakarta Studing Press 1979 ind 254 hlm ilus 21 cm oleh Sudaryono Bibliografi : hlm. 253-254 Ekonomi - Statistik 20090227023926.0 YOGYA-02090000025135 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)