Yayasan Pengembangan Sinar Tani text Jakarta Yayasan Pengembangan Sinar Tani 2001 iii, 211 hal. ; 21 cm Agribisnis 631.157 210322 20210322155603 INLIS000000000000887 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)