Mengelola Lahan Hutan yang Benar - Porkas Sagala text Jakarta Yayasan Obor Indonesia 2002 1, cet.ke-1 ind
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xiv, 120 hlm : ilus. ; 14 x 21 cm - hlm. 120 Porkas Sagala Hutan 634.92 634.92 POR m 979-461-425-4 230615 20230615090749 INLIS000000000001768 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)