text Bogor IPB 1977 160 p.: ill.; 30 cm ; 160 p.: ill.; 30 cm Institut Pertanian Bogor AGRICULTURE EDUCATION 378.963 378.963INSm 220327 20220327013823 INLIS000000000006941 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)