SEMINAR nasional ekspose hasil penelitian dan pengkajian teknologi pertanian di Sumatera Utara( 1998 : Medan). text Gedeong Johor BPTP 1998 ind 296. p. : ill. ; 26cm. AGRICULTURE TECHNOLOGY TRANSFER NORTH SUMATERA 631.17(594.42) 631.17(594.42) ISBN : 200129 20200129161018.0 INLIS000000000000312 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)