Studi tentang sistem pemasaran ubikayu di Indonesia P/SE text Bogor Pusat Penelitian Agro Ekonomi 1990 xv, 316 p. 28 cm UBIKAYU PEMASARAN LAPORAN P/SE NO. 148 LAPORAN P/SE NO. 148 INLIS000000000007691 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)