text Jakarta PAU-EK-UI 1992 iv, 178 p. : ill. ; 21 cm. EKONOMI - SUMBERDAYA MINERAL - SUMBERDAYA ENERGI 620 620 INLIS000000000004255 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)