text Jakarta Dinastindo 1990 Cet. 1 ind ii, 94 hlm ilus 21 cm Pratomo Wardoyo Bibliografi: hlm. 89 Lotus 123 (Program komputer) 001.624 4 20090227024305.0 YOGYA-02090000029064 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)