Hermawan Hartajaya text Jakarta PT. Gramedia Pustaka Utama 2004 id 380 hlm,;23 cm Transformasi Telkom 658 979-22-0778-3 241224 20241224131955 INLIS000000000025633 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)