DR. Ahmad Umar Hasyim, dkk text Jakarta Pustaka Progressif 2005 Revisi id Cet I.; 259 hlm 297.43 180916 20180916023203 INLIS000000000012529 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)