Didik harnowo text Medan Balai Pengkajian Teknologi Pertanian Sumatra Utara 2011 id iv, 46 p.: ill.; 21 cm padi sawah 633.18.03-114 978-979-3137-14-8 250804 20250804105040 INLIS000000000005673 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)