text Yogyakarta Gajah Mada University Press 1995 Cet. 1 ind xiv, 150 hlm.;ilus.;21 cm. Tambang batubara 979-420-359-9 20110210124117863 YOGYA-02110000006529 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)