text Yogykarta Graha Ilmu 2007 Ed. 1, cet. 1 ind x, 73 hlm ilus 25 cm Weli, Libertina Sembiring Manajemen informatika 658.4038 978-979-756-272-4 YOPDYOG 20090227031239.0 YOGYA-02090000046730 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)