text Jakarta Yayasan Obor Indonesia 1987 ind 448 hlm. 15x21 cm Joachim Metzner Usaha Tani, Pertanian, Teknologi Pertanian 630 630 MET E C.1 INLIS000000000002541 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)