Balai Pengkajian Teknologi Pertanian Ungaran text Ungaran Balai Pengkajian Teknologi Pertanian 1997 DUCKS ANIMAL BREEDING Br. 636.597 Br. 636.597 INLIS000000000007143 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)