text Jakarta Rineka Cipta 1992 ind 285 hlm. ; 20x14 cm Sondang P Siagian Layanan Kantor 651 651 SIA K C.1 979-518-336-2 241211 20241211032552 INLIS000000000002869 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)