text Bogor PUSTAKA 1999 30 p. : ills. ; 29 cm. Pusat Perpustakaan Pertanian dan Komunikasi Penelitian INFORMATION SCIENCE USES COMPUTERS 681.14 PED INLIS000000000001975 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)