text Yogyakarta Aditya Media 1997 Cet. 1 ind vi, 131 hlm ilus 21 cm Sumartono Prawirosusanto Bibliografi : hlm. 131 Aljabar, Numerik 979-539-076-7 20090227030336.0 YOGYA-02090000044149 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)