Timah potensi, penambangan, dan pemanfaatan Untung Sukamto text Yogyakarta Citra Aji Parama 2015 59 hlm. ; 21 cm. TIMAH 669.6 669.6 UNT t 9789791464659 231219 20231219091813 INLIS000000000533439 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)