text Medan Balai Penelitian Perkebunan Medan 1977 ind 77 p. : ill. ; 30 cm. Balai Penelitian Perkebunan Medan RUBBER PLANT PROTECTION 633.91 633.91 BAL d 230708 20230708111402 INLIS000000000025384 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)