text Jakarta Gramedia Pustaka Utama 1993 Cet.4 ind x, 249 hlm ilus 24 cm Zuhal Listrik, Tenaga 621.31 YOPDYOG 20090227022830.0 YOGYA-02090000018102 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)