text Medan Balai Penelitian Perkebunan Medan 1988 55 p. ; 25 cm KELAPA SAWIT - ABSTRAK KELAPA SAWIT ABSTRAK 633.855.3 633.855.3 INLIS000000000004355 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)