Soybean Yield Gap Analysis Project (SYGAP-II) text New York F.A.O 1989 29 p. ill ; 29 cm PETANI USAHATANI EKONOMI PERTANIAN SOSIAL ANALISIS 2.6479166666667 2.6479166666667 INLIS000000000005395 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)