text Jakarta Pustaka LP3ES 1997 ind ix, 117 hlm 18 cm Surna T. Djajadiningrat Indeks Bibliografi : hlm. 114-115 Ekonomi sumber daya alam 979-8391-69-1 YOPDYOG 20090227022118.0 YOGYA-02090000011238 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)