smallholder coffee in highland Sumatera text Jakarta Center for Policy and Implementation Studies 1992 iv, 43 p. ill; 30 cm COFFEE INTENSIFICATION TECHNOLOGICAL CHANGES SUMATRA 633.73 633.73 INLIS000000000003183 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)