Nainggolan text Medan Kementerian Pertanian 2010 iv, 20 hlm : ilus.; 21 cm Nainggolan Kentang Pertanian Teknik Produksi Bibit Kentang Bermutu 20211130120259 INLIS000000000001250 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)