text Jakarta Yayasan Obor Indonesia 1999 Ed. 1 ind viii, 56 hlm ilus 21 cm Porkas Sagala Bibliografi : hlm. 53 Hutan dan kehutanan 634.9 979-461-323-1 20090227024858.0 YOGYA-02090000034313 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)