Ibrahim Saragih text Jakarta BPSDMP 2009 vii, 42 Hal. : Tab. ; 29 cm Peningkatan Produksi Tanaman Pangan 633 210322 20210322155619 INLIS000000000000983 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)