Siagian, Renville text Yogyakarta Gadjah Mada University 2003 cet. 3 ind vii, 182 hlm il 21 cm Renville Siagian Ekonomi pertanian 338.1 979-420-428-5 170309 20090604092504.0 NADAR-06090000002007 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)